# alg/trig

4,424 results, page 14
1. ## Trig/PreCalc

Factor the Polynomial completely: 10x^4y-20x^2y^2
2. ## trig

simplify the expression. (sin^2x+cos^2x) - (csc^2x-cot^2x)
3. ## Math

Find the exact value of the trig function below. cos2Ø if sinØ = 2/5
4. ## trig

establish the identity: cot(A-B)= cotAcotB+1/cotB-cotA thanks for any help at all
5. ## trig

solve this equation: 4x^3-4x^2+13x-6=0 note: that's suppose to be 4x to the third and 4x squared
6. ## trig

write an algebraic equation equivalent to csc(arctanx)
7. ## trig help

simplify cosec40(sin40+sin80+cos120) help step
8. ## trig

prove cosx+cotx/secx+tanx =cosxcotx
9. ## Precalc/Trig

Find the smallest positive number t such that e^sin(t)=1/2
10. ## trig

Solve without using a calculator or tables cos(5pi/6 + pi/4) Thank you Reiny!:)
11. ## Trig

Prove (cos^2t+4cos^2+4)/(cost+2)=2sect+1)/sect
12. ## trig

eliminate the parameter t from the following x = 4 sin t y= 7 cos t sketch the graph
13. ## Trig

What are the focus and directrix of the parabola represented by the equation:8(y-6)=(x+2)squared?
14. ## trig

Solve for the unknown. Assume that all of the angles are acute. 1. U = 69 A = 75 AN = 56 NU = ______ is this right NU= 92.05
15. ## Trig

Prove cos^2t+4cost+4/cost+2=2sect+1/sect
16. ## trig help

simplify cosec40(sin40+sin80+cos120) help step
17. ## Trig

Find sin2theta, cos2theta if csctheta=13/12 and lies in quadrant II. Thank you!
18. ## Trig

Prove cos^2t+4cost+4/cost+2=2sect+1/sect
19. ## trig

Solve the given triginometric equation analytically 2 sinx = tanx
20. ## trig

Expan each of the following using the compound-angle formulae:sin(x + 20degree)
21. ## Trig

find all solutions of 2sinx=1-2cosx in the interval from 0 to 360
22. ## algebra 2 trig

if log3=a then log300 can be expressed as? 1) 100a 2)a+2 3)100+a 4)3a
23. ## trig

Solve the equation on the interval [0,360) cos^2t+2cos(t)+1=0
24. ## Math [Trig]

how do you find a full cycle of a trigonemtric function?
25. ## Trig

How do i find the exact value of sin 15 using the half angle formula
26. ## Trig

verify the following identity: cos(A-B)/cosAsinB=tanA+cotB
27. ## Trig

verify the following identity: tanx+cotx/cscx=secx
28. ## Trig

verify the following identity: 2sinxcos^3x+2sin^3cosx=sin(2x)
29. ## Trig

2+1/3tan(theta)=2 I know that tan=0 0,180 But i don't know how to figure it out. Please help.
30. ## trig

How king i find theta if the formula is cot(2theta) = 7/24?
31. ## Trig/PreCalc

Find a parametrization for the line segment with endpoints (5,2) and (-2, -4).
32. ## Trig

Find the value of tangent of angle A, given cos2A = 4/5, and A terminates in quadrant 2
33. ## Trig/PreCalc

Find the interior angles of the triangle with vertices (-4,1), (1,-6), and (5,-1)
34. ## Trig

establish identity sec 0/1 + sec0 = 1 - cos0/sin^2 0
35. ## trig

Find the following values for each function a. f(0) b. f(-1) c. f(-x) d. f(x+1) f(x)=2x^2+3x-4 I you plug in the value for each x, I just want to check my answers. Thanks.
36. ## trig

Give the phase shift in radians (along x) of f (x) = sin (x - 3pi/5
37. ## TRIG HELP

find the exact solutions over the interval tanx = 1 all real x
38. ## Trig

Use the half-angle formula to simplify (sin4theta)/(1+cos4theta)
39. ## Trig

Prove cos^2t+4cost+4/cost+2=2sect+1/sect
40. ## Trig

True or False: For a trignometric function, y = f(x), then x = f^-1(y). Explain your answer. Thanks.
41. ## Math: Solving Trig Equation

9tan (x) - 9 sec^2 (x)/ tan (x)
42. ## Calc

How do you do the derivative of an inverse trig function? arcsin (sqrt2/2)??
43. ## trig

Find another angle theta between 0 and 2pi that has the same cosine as 3pi/14
44. ## Trig

Give the exact value of the trigonometric function: arctan(√3)
45. ## Pre-Calc/Trig...

Use the discriminant to determine the nature of the roots. 1. 2x^2+5x-3=0 2. -x^2+x+1=0
46. ## Pre-calc/Trig...

which of the following are quadratic functions? check all that apply 1. y=2x^2-3x+7 2. y=3x-4 3. y=(5x-3x^2)/4+1 4. y=x-x^3
47. ## trig

find sin if cos(2è)=(4)/(5) and theta terminates in quadrant 1
48. ## trig

what is the hietgh difference between 2 walls 6 metres apart to get a 17.5 degree pitch
49. ## alg2/trig

Which expression is defined for all real numbers? a) x + 3/x^2 b) 5/(x + 2)^2 c)4/(x − 2)^2 d)7/x^2 + 3
50. ## trig

All solutions in interval [0,2pi) of cosine theta plus one equals zero
51. ## trig

All solutions in interval [0,2pi) of cosine theta plus one equals zero
52. ## Trig

In ΔABC, a = 19, c = 10, and m∠A = 111. Which statement can be used to find the value of C?
53. ## trig

Hi,how do I find both solutions of the equation cos0 = 0.35 between degrees 0 and 360? Many thanks
54. ## Trig

Find all real numbers that satisfy the equation. 2 cos x + 1 = 0
55. ## trig

find all soultions of the equation sec^s x-1=0 in the interval{0,2pi}
56. ## Math

What is the inverse trig function cotangent of square root of 3/3? What is the value?
57. ## trig

Use a half-angle formula to find the exact value of cos 5ð/12
58. ## Trig

verify following trigonometric identities. 1/sec0tan0 = csc0 = sin0
59. ## Pre-Calc/Trig

What are the polynomial names for these functions. 1.) m(x)=x+x^2-1 2.) d(x)=x+ 3.14 3.) 2-6x^2+11x^3
60. ## Trig

If 180<A<270 and sinA= -radical(5)/3, find tan(1/2)A.
61. ## trig

find all the values of x that satisfy the equation: 2sin^2(x) + 1 = 3sin(x).
62. ## Trig

prove that tanA divided by the sinA equals the secA
63. ## trig

Find all angles è between 0° and 180° satisfying the given equation. cos è = 1/9
64. ## Pre-Calc/Trig...

Write the equation y = bx in logarithmic form.
65. ## trig

Find exact value of the expression. sin( 27pi/4 + 17pi/6)
66. ## TRIG

THE SIN COS SEC TAN COT CSC 5X+Y=0
67. ## Trig

Solve exactly over 0 ≤ θ < 2π secx + tanx = 1
68. ## trig

how do i find the corresponding function formula and check the symmetry algebraically
69. ## trig

solve exactly over the indicated interval: cot(theta)=0, all real numbers
70. ## trig

Solve exactly over the indicated interval: 2sinx+cscx=3, 0<theta<360
71. ## TRIG

in an arithmetic sequence a1=4 and d=8 which term is 428 Show your work
72. ## Trig

Evaluate (if possible) the sine,cosine, and tangent of the angle 10pi/3
73. ## TRIG

determine the sum of the first 100 even integers SHOW YOUR WORK
74. ## Trig

Use sum and difference identitites to find the exact value of co 15 degrees
75. ## Trig

(2-2i)^5 find the given power write answer in rectangular form
76. ## trig

find the primary solutions. 4cos^2x-3=0 and tanx-tan^2x=0.
77. ## trig

(2-2i)^5 find the given power write answer in rectangular form
78. ## Trig

If sec A =5/4 and A is an angle in Quadrant IV, find the value of cos A. A. -4/5 B.4/5 C.-5/4 Is it choice A
79. ## Trig.

In right triangle ABC, C is the right angle and sinA=(radical 3/2). What is the value of csc B?
80. ## Geometry

30-60-90 triangle has a hypoteneuse of 10 use trig to find the short side
81. ## Algebra 2 / Trig

Given cos X = -0.147, find two possible values for X that are not co-terminal.
82. ## Trig 2

What is the smallest value for x where y = sin 2x reaches its maximum ...wtf that means.
83. ## trig

find the value of alpha cotalpha=1.3692847 is 0.023903 correct?
84. ## Trig

Verify that each equation is an identity. cos^2x+tan^2xcos^2x=1
85. ## Trig

evaluate exactly(without calculator): 1. sec(pi/4) 2.3sin4pi 3. tan240(degrees)
86. ## trig

how do i find the amplitude, period, phase shift of y=2 cos(-4t-(-4 pi/3))

88. ## trig

if cos(theta) equal -3/4 find sin(2theta)
89. ## trig

Given that cos A = 5/13 and A and B are both acute angles, calculate the value of Sin2A and Cos2A
90. ## Maths 3u trig

If sinA = 1/3 and cosA<0 find the exact value of tan2A
91. ## Math (trigonometry)

Find the value of each of the remaining trig functions. Cscè=-4, ð<è<3ð/2
92. ## Trig

Rewrite cos(tan^-1(v)) as an algebraic expression in v. Can someone help me with this problem? Thanks
93. ## Help me trig.

solve the equation in the interval [0,2pi) tan (t/2)-sint=0
94. ## Algebra 2/trig

How would I calculate the following function value? tan = 29degrees 36feet
95. ## trig

Find the exact values of the inverse function arcsin 1/2
96. ## Math

Required to Prove the following trig identity: (cos2x)^2 + (sin2x)^2 = 1
97. ## trig

If an equilateral triangle has a side of 10 ft what is its altitude to two significant digits
98. ## Calculus

Integration with trig functions Integral of [(1-sinx)/cos^2x] dx
99. ## trig

2 cosine squared pi over 8 minus 1 find exact value of given expression
100. ## trig

slove the equation exactly over the interval [0, 2pi) sinx=1-2sin^2x