alg/trig

4,424 results, page 18
1. trig

solve the point given below is on the terminal side of an angle0. find the exact value of the six trigonometric functions of 0. (10,-10)
2. Trig

How do I find all solutions in the interval [0, 2Pi): cotx=cscx-1 the answer choices are: a.) x=Pi/2 b.) x=Pi/2 and 3Pi/2
3. trig

I have to factor the expression and use fundamental identities: sins^2xcscx^2-sin^2x sec^4x-tan^4x
4. trig

Suppose that θ is an angle in standard position whose terminal side intersects the unit circle at , −15/17,−8/17
5. trig

find, to the nearest degree, the solution set of 4 cos^2x-1=0 in the intervak between )degrees and 360degrees.
6. Math/Trig

Find the area of a sector of a circle with a radius of 3 m and a central angle of 125degrees.
7. trig

If tan(x)=8/3 and sin(x)<0, then find cos (x) sec(x) csc(x) i don't understand how u do this problem
8. trig

Describe the possible values of variable a such that (/72) + (/a) can be simplified to a single term. Note: (/a) is the square root of a.
9. trig

solve equation for the exact solutions if possible put answer in degrees. 2tanx/3-tan^2x=1
10. trig

for a set of data the line of best fit is given by y=-.687x + 3.431 and r^2=.325. what is the correlation efficient
11. Calculus

Integrate [1/square root of(e^(2x)-1)]. I have to use u substitution. We are doing the integrals of inverse trig functions, but I cannot get it to work out!
12. Math/Trig

Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.
13. Math/Trig

Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.
14. trig

Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)
15. trig

ind, to the nearest minute, the solution set of 4 cos x + 5 = 6 sec x over the domain 0 degrees
16. trig

The minute hand of a clock is 6 inches long. What distance does its tip move in 16 minutes?
17. Trig

How do you find csc 163degrees 20minutes? (I didn't know how to insert the degree and minute marks)
18. Pre-Cal: Trig

The point (7,2) determines a poistion angle "t". Find the exact value of sin(t).
19. trig

A and B are positive acute angles. if sin A=4/5 and cos B=8/17 find the value of tan (A-B) is the answer =43/100
20. Trig

How would you write the partial fraction decomposition of the rational expresion 1/(x^2)-25? I know that you factor the denominator, so that's 1/(x-5)(x+5). What are the next steps?
21. math

correction: use the unit circle to fin the ecaxtvalue for all trig functions theta=2pi/3
22. Trig

Use a half-angle identity to find the exact value for sec(x/2) if sinx = -12/13 ; 3pi/2 < x < 2pi
23. trig

find the exact zeros of the function in the interval [0, 2π) 2 cot squared x + 3 csc x=0
24. trig

simplify (sec^2x + csc^2x) - (tan^x +cot^2x) to either a constant or a basic trigonometric function.
25. trig

find all values of x on interval 0-2pi. (sin4x)(cos7x)=(cos4x)(sin7x) identities should be used.
26. trig

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

John weighed five rocks two at a time in all possible ways. The weights in pound are 30,38,41,42,45,46,50,53,58,61. How much does each rock weigh?
28. trig

Ok, so im brand new at trigonometry. If i have a right triangle with an acute angle of 30° an opposite side of 4 and a hypotenuse of x how do ii find x
29. Pre-Cal: Trig

The point (7,2) determines a position angle "t". Find the exact value of sin(t).
30. trig

Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)
31. MATH -

Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?
32. Calculus (trig stuff)

How do I do these type of problems find the exact value. Do not use a calculator cos 7pi
33. Trigonometry

Solve. 2sin(2ƒÆ) + ã3 = 0 interval [0, 2ƒÎ) How do I start this? I feel like maybe Trig Identities, but I'm not really sure.
34. Trig

How do you find the exact circular function value of csc(-23pi/6)? I don't know how to do the pi symbol on the keyboard.
35. Trig identities:(

Sin4A - cos4A = sin2A - cos2A Can i just square root the left side??:O
36. algebra-trig help asap

Evaluate the expression. Assume that all angles are in quadrant 1. 1. cos(arccos4/5)
37. trig e-maths

giving that cosx=4/5 and siny=12/13, find cos(x+y) when x is acute and y is obtuse angle
38. trig

Give an equation of a sine function of x which has a phase shift along y of -2 units and a wavelength of 3pi

40. trig

SOlve over (2,pie) and find the general solution in radians. 2sin3x = square root of 2
41. algebra-trig help asap

Evaluate the expression. Assume that all angles are in Quadrant I. 14. tan(arccos 3/5)
42. trig equations

Find all solutions (if they exist)for the given equation on the interval [0,2pi) cos^2x-5sinx+5=0
43. math

The terminal side of theta is in Quadrant III and lies on the line y = 2x. What are the 6 trig functions?
44. Pre-calculus

find the trig functions of angle x if the terminal side of x passes through the point (-12, 5).
45. Pre-Calc/Trig

Go over this with me please, I forgot how to do it. Solve the polynomial equation. 15x^3-119x^2-10x+16=0
46. Math 12

trig question 2sin^2x+sinx-6=0 how to solve for x when the restriction is x is greater than or equal to zero but less than 2pi
47. trig

How much does it cost to paint a triangular surface of sides 6m,5m, and 11m at the rate of rs.20/-per metre square.
48. Math (Trig)

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

Find all solutions on the interval [0,2pi] for the following: 2sin^2(x)-5sin(x)=-3 cos^2(x)+sin(x)=1
50. trig

use an identity to write the expression as a single trignometric function. squ root 1-cos48°/2

What are the period and 2 consecutive asymptotes? 1. y= -3tan pi x 2. y= 2 sec 4 x 3.y= csc x/3 4.y = 3cot pi x/3
52. Trig

Use the half-angle formulas to come up with an exact expression for each function value below. You do not have to simplify your answers. cos(pi/16)
53. trig

Given a right triangle with legs 8 and 5, find the measure of the two acute angles. (Round to the nearest hundredth
54. MAth Trig

Find the diameter of a circle with an arc length of 32 cm and a subtended angle of 72 degrees
55. trig

Use the appropriate cofunction to find an equivalent expression for cos 54° cot 24 sec 32 sin 36 csc 44
56. trig

prove that the equation 2sin x cos x +4cos^2 x =1 may be written in the form of tan^2 x -2tan x -3=0
57. Trig

Can somebody please help me find the domain of: 1 / cos4x If there are any working out, could you be kind enough to show your steps? Thankyou. All help is of course, appreciated.
58. Trig math

how to split up using sum and difference identities cos (13pi/12) PLeaseeeeeeeeeee help!!! thanx a million
59. trig

Write the complex number in trigonometric form, using degree measure for the argument. -12 - 16i
60. Trig-desperate

f(x)=sin2x and g(x)=1/2tanx for x is the element of [-90;180] 8.1)calculate the x-coordinates of the points of intersection of f and g.
61. Pre-Calc/Trig

write an equation of the conic section: a hyperbola with vertices (0,-6) and (0,6) and asymptotes y=(3/4)x and y=(-3/4)x
62. Trig

A car is traveling at a speed of 55 mph with a bearing of 210°. What vector represents the velocity?
63. trig

Consider the trigonometric function f(t) = -3+4cos(pi/3(t-3/2)) What is the amplitude/period of f(t)? What are the maximum and minimum values attained by f(t)?
64. Trig

How do you solve this problem? y = 2sin 3x + 4sin 2x I haven't done these types of problems for awhile and have forgotten how to do them.
65. math trig

lets say you have a tree or a flagpole. Describe how you would measure this object using right angled triganometry
66. Trig Proofs!

I'm having trouble solving this proof. Can you help? cos^3+sin^3/cosx+sinx = 1-sinxcosx Thanks!:)
67. Trig Question

Find solutions of the following equation which lie in the interval [0,2pi): 6cos(3theta)/(2)+3=0
68. Trig

This has to do with dot products (I can't make the arrow above the u, i, or j). Given u = 4i - 6j and v = -3i + 5j, find 4u-(1/2)v Am I just supposed to plug in what u and v are equal to in 4u-(1/2)v? If so, is the answer (35/2i - 53/2j)
69. trig

write equations expressing: 19cos(theta-50degrees) as a sum of sine and cosine.
70. Trig/PreCalc

Use an algebraic method to eliminate the parameter and identify the graph of the parametric curve. x=5-3t y=2+t -1<-x-<3
71. Math Help

Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?
72. trig

verify the identity. cos2 x - sin2 x = 1 - 2sin2 x the 2's next to the sin and cos on the right sides are powers.
73. trig

using the trigonometric identities find the exact (radical form) value of cos (105 degrees)
74. trig

Find a polar equation of this conic with focus at the pole and the given eccentricity and directrix. e=2, r cos X =-1
75. Trig

use a graphing utility to solve each equation, rounded to 2 decimal places 1. x^2 - 2sin2x = 3x 2. x^2 = x + 3cos2x
76. trig

I need to know how to graph y = sin 2(x - Pi/3) I need to have: Amplitude Period Phase Shift 5 critical points Help would be appreciated. Thanks.
77. Trig

If tan A= 3/4 and cos B=-5/13, where A and B are both third-quadrant angles, find sin(A+B). Please explain how you found all the answers
78. trig

Solve sin ¥è = -0.204 for 90¨¬ < ¥è < 270¨¬. Give your answer to the nearest tenth of a degree.
79. trig

given a central angle of 66 degrees find the area of a sector in a circle of radius 12.1 inches
80. precalculus

how you do you use the power-reducing formula to find the exact value of the trig function: sin^2(37pi/12)
81. Alg

A charter boat travels at a maximum rate of 25 mph. The function d(x) = 25x represents the distance d(x),in miles, that the boat can travel in x hours. The charter boat travels a maximum distance of 75 miles from the shore.
82. Alg

A charter boat travels at a maximum rate of 25 mph. The function d(x) = 25x represents the distance d(x),in miles, that the boat can travel in x hours. The charter boat travels a maximum distance of 75 miles from the shore.
83. alg.

Find the slope of the line passing through the points (–2, 1) and (3, 9). I know the equation to figure this out is: m = y(2) + y(1) ----------- x(2) + x(1) but its a multiple choice question and my answer is not the same as the choices. how exactly do I
84. trig

If point (3, -8) lies on the terminal side of an angle A in standard position, find: a) sinA b) tanA
85. trig

give 3 different coterminal angles in radians to: pie/3 i changed that to degree and got 60 degress, but now i'm stuck...i don't know what to do
86. trig

If S is an element of [ 3pi/2 , 2pi ] what quadrant does the terminating side lie in and evaluate for sine theta
87. Pre-trig/Calc

Please help me. Use Descartes' rule of signs to describe the roots for each polynomial function. 3. m(x)=x^3+3x^2-18x-40
88. math c30 trig

Determine the period length of y= 2/3 sin (3x/2 ) I had 3pi/2 but the correct answer is 4pi/3 how do you get that???
89. trig

Solve rounding to 2 decimal places. 9cosx + 4cos(2x) + 1 = 0 over 0° ≤ x < 360° Thanks to anyone that can help! I'm totally stumped.
90. Trig

Use the given information to evaluate sin (a+b). Exact answers only. No decimals. Tan a = 4/3, cos b ='-12/13; neither a nor b are in quadrant III.
91. trig

find the coordinates of the terminal point on the unit circle determined by t=9pt/7 to two decimal places
92. trig

write an equation expressing: cos37cos99 as a sum Review question. I know the formula. Having trouble with working it out.
93. Trig

Use the given information to evaluate sin (a+b). Exact answers only. No decimals. Tan a = 4/3, cos b ='-12/13; neither a nor b are in quadrant III.
94. Math- Trig

In an oblique triangle ABC, A=30 degree, and the perpendicular from C to AB is 12 inches long. Find the length of AB.
95. trig/math

If A is between 270degrees and 360degrees, and cos A=12/13, find the exact value of: sin2a, cos2a, sin1/2a, cos1/2a
96. trig

if you are riding on a ferris wheel that is 60 ft tall and it takes you 5 minutes to make 1 revolution, what is your linear velocity?
97. trig

use the calculator to find the trigonometric values. express your answers in ten-thousandths. sin 53 degrees 30 ft
98. Pre-Calc/Trig

Use Descartes' rule of signs to describe the roots of the polynomial function. m(x)=x^3+3x^2-18x-40
99. trig

What is the length of the circular arc intercepted by a central angle of 20degrees in a circle with a radius of 5cm?
100. Trig identities

Sin x/[1-cos(-x)] = csc x + cot x Please Verify the Identity. I have been going in circle with this one... Just a hint would be nice. Thank you.