# Rewrite tan^2⁡x sin^2⁡x in terms of cosine without power greater than one. Rewrite cot^2⁡〖x/4〗 in terms of cosine without power greater than one. Assume that x is in QI.

35,248 results
1. ## trig

Simplify and write the trigonometric expression in terms of sine and cosine: cot(-x)cos(-x)+sin(-x)=-1/f(x)=f(x)=____________ I've tried everything, I think that the "-1/f(x)" part is screwing up my answer but I'm not sure what it's asking me to do with

2. ## math

Rewrite the expression as an algebraic expresion in x: tan(sin−1x)=

3. ## math

Simplify and write the trigonometric expression in terms of sine and cosine: tan^2 x-sec^2 x=

4. ## precalculus

Write the trigonometric expression in terms of sine and cosine, and then simplify. cos u + sin u tan u

5. ## Precalc?

Suppose that Cot(theta) = c and 0

6. ## ALGEBRA

The following equation expresses a relationship in terms of one variable. However, you are asked to rewrite the equation in terms of a different variable. E=I×R E=460volts R=92ohms I=?

7. ## Pre-Cal

Write the trigonometric expression in terms of sine and cosine, and then simplify. tan u sin u + cos u _____________.

8. ## math

use the quotient and reciprocal identities to simplify the given expression cot t sin t csc t sin t tan t cot t cot t sec t

9. ## mathematics

Write the following trigonometric expression in terms of sine and cosine, and then simplify. sin^2 x (1 + cot^2 x)

10. ## math

Find the values of the trigonometric function cot -8/17 sin: sec: tan: cot: I know you use a Pythagorean Identity, sin^2t + cos^2t=1 I got 64/289 for the first one for example and it was wrong.

11. ## Trig

Rewrite tan 88 deg in terms of its cofunction How does that end up????

12. ## Trigonometry

Someone please help!!!? 7. What is 1/cot(x) in terms of sine? This is what I've got so far: sin = 1/csc tan = 1/cot 1+cot2(x) = csc2(x) 1/1+cot2(x) = 1/csc2(x)

a. Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine: (cos^4)x (or cos*x to the 4th power) b.Use an appropriate Half- Angle Formula to Find the Exact value of the expression: 1. tan 15(Degrees) 2. cos

14. ## sine and cosine

Simplify and write the trigonometric expression in terms of sine and cosine: sin x + (cot x)(cos x) = (1/f(x)) f(x)= ?

15. ## Maths- complex numbers

Find tan(3 theta) in terms of tan theta Use the formula tan (a + b) = (tan a + tan b)/[1 - tan a tan b) in two steps. First, let a = b = theta and get a formula for tan (2 theta). tan (2 theta) = 2 tan theta/[(1 - tan theta)^2] Then write down the equation

16. ## pre calculus

Simplify and write the trigonometric expression in terms of sine and cosine: sin x + (cot x cos x) = 1/(f(x) f(x)= ???

17. ## Trigonometry

rewrite tan(sin^-14v) as an algebraic expression in v

18. ## Trig. Identities

Rewrite tan^2⁡x sin^2⁡x in terms of cosine without power greater than one. Rewrite cot^2⁡〖x/4〗 in terms of cosine without power greater than one. Assume that x is in QI.

19. ## calculus

rewrite the expression in terms of the first power of the cosine. sin^8x

20. ## Math

Rewrite the expression in terms of the first power of the cosine sin^8(x) how do i do this plz help !!

21. ## Trigonometry

Please review and tell me if i did something wrong. Find the following functions correct to five decimal places: a. sin 22degrees 43' b. cos 44degrees 56' c. sin 49degrees 17' d. tan 11degrees 37' e. sin 79degrees 23'30' f. cot 19degrees 0' 25'' g. tan

22. ## algrebra 2

What can you do to the equation sin^2(θ)+2θ+cos^2(θ)=1 to get the identity 1+cot^2(θ)=csc 2^(θ)? There may be more than one correct answer. Select all that apply. Rewrite sin^2(θ)/cos^2(θ) using the tangent identity. Simplify cos^2(θ)/cos^2(θ) to

23. ## math

Simplify and write the trigonometric expression in terms of sine and cosine: sin x +(cot x)(cos x) = 1/f(x) f(x)= ?

24. ## Trig

Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < 2pi Find: sin (v + u) cos (v - u) tan (v + u) First compute or list the cosine and sine of both u and v. Then use the combination rules sin (v + u) = sin u cos v + cos v sin u. cos (v - u) = cos u

25. ## Math

1. use the suitable product-to-sum formula to rewrite the following expression: sin(13x/2)sin(5x/2) 2. Find value of cos(255degrees)cos(105degrees) is it 1/4? 3. cos(pi/12) - cos(5pi/12) root3/4? 4. Use the appropriate sum-to-product formula to rewrite the

26. ## trigonometry repost

Reduce (csc^2 x - sec^2 X) to an expression containing only tan x. (is this correct?) csc x = 1/sin x sec x = 1/cos x tan x = 1/cot x sin^2 x + cos^2 x = 1 1 + cot^2 x = csc^2 x tan^2 x + 1 = sec^2 x csc^2 x - sec^2 x = 1 + cot^2 x - (1 + tan^2 x) = cot^2

27. ## Math

Rewrite the expression 2sinθ(cosθ)(cotθ) in terms of sine or cosine.

28. ## math,help

Can someone show me how step by step how to solve this problem... Rewrite the middle term as the sum of two terms and then factor by grouping. x^2-2x-63 step 1. Find two factors which when multiplied will give you -63 and when added will give you -2 how

29. ## Math

Rewrite in terms of an expression containing only cosines to the power 1. 4 cos^6x

30. ## Trig

Rewrite the expression secvcscv+cotv/secvcscv in terms of sine and cosine, then simplify using trigonometric identities.

31. ## Trigonometry

IM STUCK ON THESE :( 1. What is the equation for shifting the standard sine curve +2 units horizontally? A. y = sin (x + 2) B. y = sin x + 2 C. y = sin x − 2 D. y = sin (x − 2) 3. What is tan-¹ √3/3 ? A. π/4 B. -π/3 C. π/6 D. -π/4 4. cot–1

32. ## Math

1. Power reducing formulas can be used to rewrite 8sin^2 xcos^2 x as 1-cos4x. True or False? 2. Find the exact value of cos15 degrees using a suitable half angle formula. square root of 2+root3 / 2? 3. Find the exact value of cos^2(pi/8) using a suitable

33. ## trig help much appreciated! :))

1. Find the complete exact solution of sin x = . 2. Solve cos 2x – 3sin x cos 2x = 0 for the principal value(s) to two decimal places. 3. Solve tan2 x + tan x – 1 = 0 for the principal value(s) to two decimal places. 4. Prove that tan2  – 1 + cos2 

34. ## Math - Trig

I'm trying to verify these trigonometric identities. 1. 1 / [sec(x) * tan(x)] = csc(x) - sin(x) 2. csc(x) - sin(x) = cos(x) * cot(x) 3. 1/tan(x) + 1/cot(x) = tan(x) + cot(x) 4. csc(-x)/sec(-x) = -cot(x)

35. ## Calculus

Okay so I have a question on my assignment that says: You are given that tan(y) = x. Find sin(y)^2. Express your answer in terms of x. I know its derivatives, and I've tried taking the derivatives of both etc, and got them both to come out as cos(y)^2,

36. ## math

when you are multiplying an equation how do you find like terms The ones that look alike. The numbers are like terms such as 4 or 8 or 10. The variables are like terms such as 4x or 9x or 3x but both of these like terms are different still from say 4x^2 or

37. ## Math-Limits

sqrt(1+tan x)-sqrt(1+sin x) lim all divided by x^3 x-->0 Use that Sqrt[1+x] = 1+ 1/2 x + 1/2 (-1/2)/2 x^2 + 1/2(-1/2)(-3/2)/6 x^3 + O(x^4) You can thus write the numerator as: 1/2 [tan(x) - sin(x)] - 1/8 [tan^2(x) - sin^2(x)] + 1/16 [tan^3(x) - sin^3(x)] +

38. ## Trigonometry

1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two decimal places. 6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin y 10.Prove that 1+tanθ/1-tanθ = sec^2θ+2tanθ/1-tan^2θ 17.Prove that sin^2w-cos^2w/tan w sin w + cos w tan w =

39. ## mat117/algebra

Rewrite the middle term as the sumof two terms and then factor completely. Please show me the formula and how to use it correctly. 12w^2 + 19w + 4 19w can be written as 16w + 3w. Those are the cross product terms when multiplying 4w times 4 and 3w times 1.

40. ## Math

rewrite each expression by combining like terms 8pq-3pq and 2m-3m+4

41. ## Trig. Identities

Rewrite cot^2⁡〖x/4〗 in terms of cosine without power greater than one. Assume that x is in QI.

42. ## Math

Rewrite the expression in terms of the first power of cosine sin^4(x)

43. ## Math

rewrite the expression in terms of the first power of cosine. cos^3(x)sin^4(x)

44. ## Trigonometry

rewrite the expression in terms of the first power of cosine. cos^3(x)sin^4(x)

45. ## math

Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine. sin^6(x) Answer=__________ ~Thank you.

46. ## Trigonometry

Use the power-reducing formulas to rewrite the expression in terms of the first power of the cosine. [#1.] (sin^4x)(cos^4x) [#2.] (sin^4x)(cos^2x)

47. ## Math (Trig)

sorry, another I can't figure out Show that (1-cot^2x)/(tan^2x-1)=cot^2x I started by factoring both as difference of squares. Would I be better served by writing in terms of sine and cosine? Such as: [1-(cos^2x/sin^2x)]/[(sin^2x/cos^2x)-1]=(cos^2x/sin^2x)

48. ## Trig

Rewrite the expression (tan A)(cot A) in terms of a single trigonometric ratio.

49. ## Mathmatics

a. Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine: (cos^4)x (or cos*x to the 4th power) b.Use an appropriate Half- Angle Formula to Find the Exact value of the expression: 1. tan 15(Degrees) 2. cos

50. ## trig

Rewrite the expression in terms of the first power of the cosine. Use a graphing utility to graph both expressions to verify that both forms are the same. 5 sin6(x)

51. ## precal

rewrite the expression in terms of the first power of cos sin^2xcos^2x

52. ## precal

rewrite the expression in terms to the first power of cos sin^2xcos^4x

53. ## math

how do you rewrite the expression to the 1st power of cosine by using power-reducing formulas? PLEASE AND THANK YOU :D sin^2xcos^4x

54. ## calculus II

∫ tan^2 x sec^3 x dx If the power of the secant n is odd, and the power of the tangent m is even, then the tangent is expressed as the secant using the identity 1 + tan^2 x = sec^2 x I thought that since tan is even and sec is odd, we have to put this in

55. ## Trigonometry

express in terms of sine and cosine. a) tan theta/ cot theta i know the answer is sin^2 theta / cos ^2 theta but how do you do it?

56. ## math

Simplify and write the trigonometric expression in terms of sine and cosine: sin x + (cot x)(cos x) = (1/f(x)) f(x)= ?

57. ## pre calculus

Write the trigonometric expression in terms of sine and cosine, and then simplify. cot(x)/csc(x)-sin(x)

58. ## Trig

Solve in terms of sine and cosine: sec(x) csc(x)- sec(x) sin(x) so far I have: 1/cos(x) 1/sin(x) - 1/cos(x) sin(x) I am not sure where to go to from there. The book says the answer is cot(x) or cos(x)/sin(x) Thank you in advance.

59. ## Trigonometry

IM STUCK ON THESE :( 1. What is the equation for shifting the standard sine curve +2 units horizontally? A. y = sin (x + 2) B. y = sin x + 2 C. y = sin x − 2 D. y = sin (x − 2) 3. What is tan-¹ √3/3 ? A. π/4 B. -π/3 C. π/6 D. -π/4 4. cot–1

60. ## Trigonometry - Proof

Prove that cot x + tan x = csc x * sec x whenever both sides are defined. I tried rewriting all sides in terms of sin x but it got all complicated and I can't make head or tail of it. Could someone assist me? Is it all just a pound-out algebra problem in

61. ## Math

Find one solution for each equation. 1. cos 4theta = sin theta 2. tan 4theta = cot (20^0 + 20) Write the function sin (B + 35^0) in terms of its cofunction.

62. ## trigonmetry

Use identities to find an equivalent expression in terms of sines and cosines only. cot θ sin θ - tan θ cos θ

63. ## Math

Rewrite the middle term as the sum of two terms and then factor completely. x2 + 19x + 90 Factor completely. ax – ay + x2 – xy Rewrite the middle term as the sum of two terms and then factor by grouping. x2 + 4x – 12 Complete the following statement.

64. ## Math

For all values x for which the terms are defined, fidnteh value(s) of k, 0

65. ## math

write each expression in terms of sine and cosine: csc^3 theta/cot theta * tan^2 theta/sec^2 theta

66. ## pre-calculus

Rewrite the expression so that it involves the sum or difference of only constants and sines and cosine to the 1st power (cos 5x)^2

67. ## pre-calculus

Rewrite the expression so that it involves the sum or difference of only constants and sines and cosine to the 1st power (sinx)^4

68. ## Pre Cal

could someone please tell me what the other angle identity of tan is? Thank you much! "...other angle identity of tan x"? in relation to which "other" ? there are many identities dealing with the tangent. The most important is probably tan x = sin x/cos x

69. ## math (repost)

Which of the following are inverse functions? 1. Arcsin x and sin x 2. cos^-1 x and cos x 3. csc x and sin x 4. e^x and ln x 5. x^2 and +/- sqrt x 6. x^3 and cubic root of x 7. cot x and tan x 8. sin x and cos x 9. log x/3 and 3^x I believe the answers are

70. ## Math

Which of the following are inverse functions? 1. Arcsin x and sin x 2. cos^-1 x and cos x 3. csc x and sin x 4. e^x and ln x 5. x^2 and +/- sqrt x 6. x^3 and cubic root of x 7. cot x and tan x 8. sin x and cos x 9. log x/3 and 3^x I believe the answers are

71. ## Calculus

Use a Riemann sum with n = 3 terms and the right endpoint rule to approx. ∫(1, 2) sin(1/x)dx. My teacher just needs the terms written out, no need to add or multiply. This is a problem she did up on the board, so here's her answer: sin(4/3)(1/3) +

72. ## Math

This one confused me since it revolved around what seemed like dividing trig function by another function Write the following expression in terms of the tangent function 2 / ((cos(r^2 - s^2) / (sin(r^2 - s^2)) = ? I know tan t = sin t / cos t. So would I

73. ## precalculus

For each of the following determine whether or not it is an identity and prove your result. a. cos(x)sec(x)-sin^2(x)=cos^2(x) b. tan(x+(pi/4))= (tan(x)+1)/(1-tan(x)) c. (cos(x+y))/(cos(x-y))= (1-tan(x)tan(y))/(1+tan(x)tan(y)) d.

74. ## Math-Trigonometry

Show that if x, y, and z are consecutive terms of an arithmetic sequence, and tan y is defined, then (sin x + sin y + sin z) / (cos x + cos y + cos z) = tan y. So I tried letting x = y-k (since x,y,z are consecutive terms of an arithmetic sequence), then

75. ## Math-Trig

1. Create an algebraic expression for sin(arccosx-arcsin3x) 2. The cosx=4/5, x lies in quadrant 4. Find sin x/2 3.Determine all solutions in (0,2pie) for sin4xsin^2x=3, cot^2v(3-1)cotx=v(3), cos^2x=cosx, and tan^2x-6tanx+4=0 4. Solve; sin(∏/2-x)=1/sec 5.

76. ## Math

How do we rewrite 7/a - 9/b so that both terms have the denominator ab?

77. ## algebra

Rewrite the inequality x/-3 < 4 in terms of x

78. ## pre-calculus

Rewrite the following expression as an algebraic function of x sin(arccos(x/2)) I know sine is y, which is opposite over hypotenuse. I also know that arccos is the inverse of cosine. I'm confused on what the question is asking and what to do with the x.

79. ## Math

How does the related acute angle help to determine the trigonometric ratios of angles greater than 90 degrees? (in terms of the Cartesian plane) And why is the sin, cos, and tan of the principal angle equal to the sin, cos, and tan of the related acute

80. ## Math- Fourier series

Evaluate the formula for cn in Fourier :integral of e^kx dx = e^kx /k :unless k=0: Type your formula for c0 and cn (n>0) into the indicated spaces. Then rewrite the Fourier series in terms of sines and cosines. Simplify as far as possible (eliminate the

81. ## Math- Fourier series

Evaluate the formula for cn in Fourier :integral of e^kx dx = e^kx /k :unless k=0: Type your formula for c0 and cn (n>0) into the indicated spaces. Then rewrite the Fourier series in terms of sines and cosines. Simplify as far as possible (eliminate the

82. ## Math- Fourier series

Evaluate the formula for cn in Fourier :integral of e^kx dx = e^kx /k :unless k=0: Type your formula for c0 and cn (n>0) into the indicated spaces. Then rewrite the Fourier series in terms of sines and cosines. Simplify as far as possible (eliminate the

83. ## Math

Are these correct? 5. is sin θ = -7/13 and cos θ = 12/13, find tan θ and cot θ using Quotient Identities. answers: tan (θ) = -(7/12) cot (θ) = -(12/7)

84. ## trig

I do not understand these problems. :S I'd really appreciate the help. Use trigonometric identities to transform the left side of the equation into the right side. cot O sin O = cos O sin^2 O - cos^2O = 2sin^2 O -1 (tan O + cot O)/tan O = csc^2 O

85. ## algebra

Can someone please help me do this problem? That would be great! Simplify the expression: sin theta + cos theta * cot theta I'll use A for theta. Cot A = sin A / cos A Therefore: sin A + (cos A * sin A / cos A) = sin A + sin A = 2 sin A I hope this will

86. ## Math(I Truly Need Help Please)

If P(400)=900 Rewrite this Equation in terms of p^-1

If P(400)=900 Rewrite this Equation in terms of p^-1

88. ## MATH

REWRITE EQUATION W=EXP(2Y+8Z-3X) AS THE PRODUCT OF THREE TERMS

89. ## algebra

Rewrite this polynomial so that the terms are in ascending order: 8x + 4x^4 + 10 + 6x^3 + 3x^5

90. ## Math

1)Find cos theta if sin theta=3/5 and 90 degrees

91. ## maths

how to find the terms through x^5 in the maclaurin series for? Hint: it may be easiest to use knownMaclaurin series and then perform multiplications, divisions, and so on. For example, tan x = (sin x)/(cos x). (1)f(x) = tan x, (2) f(x) = e^2 sin x (3) 1 +

92. ## verifying identities

how do you veriy tan x + Cot y -------------- = tan y + cot x 1-tan x cot y sin^4x + cos^4x = 1- 2cos^2x + 2cos^4

93. ## trig

simplify and write the trigonometric equation in terms of sine and cosine. tan^2x-sec^2x

Simplify and write the trigonometric expression in terms of sine and cosine: ((2+tan^2 x)(sec^2 x))-1 = (f(x))^2 f(x)= ???

95. ## pre calculus

Simplify and write the trigonometric expression in terms of sine and cosine: ((2+tan^2 x)/(sec^2 x))-1 = (f(x))^2 f(x)= ??

96. ## cosine and sine HELP!

Simplify and write the trigonometric expression in terms of sine and cosine: ((2+tan^2 x)(sec^2 x))-1 = (f(x))^2 f(x)= ???

97. ## Math

Simplify and write the trigonometric expression in terms of sine and cosine: ((2+tan^2 x)/(sec^2 x))-1 = (f(x))^2 f(x)= ??

98. ## Trig

Rewrite -2x^2 + sqrt(3)xy - y^2 +2 = 0 with the xy term eliminated. Round terms to nearest hundredth.

99. ## Math (Trig)

Rewrite the following expression in terms of tan3x: (sin2x + sin4x)/(cos2x + cos4x)

100. ## Algebra

Rewrite the middle term as the sum of two terms and then factor by grouping. x2 – 2x – 63 Factor. 9x(x – 7y) – 6(x – 7y) Factor completely. x^2+8x+15 Rewrite the middle term as the sum of two terms and then factor completely.