# alg/trig

4,413 results, page 14

1. ### trig

I need HELP Verify the identity Cot3X/CSCX=cosX(csc2X-1)
2. ### Trig

Determine the quadrant in which each lies: sec0<0,cot0<0 sin0<0,tan0>0
3. ### Trig

Find the area of the triangle. b=125 c=162 <B=40 (b and c are the sides) (<B is the angle)
4. ### trig

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

Give the exact value of the trigonometric function: arctan(√3)
6. ### trig

Verify the identity: sin(x+y)/cos(x-y)=cotx+coty/1+cotxcoty
7. ### trig

how do i find the corresponding function formula and check the symmetry algebraically

9. ### Math (trigonometry)

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

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

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

solve the equation 2 sec x- tan x = cot x for the interval 0 to 360
13. ### trig

Find the focus, directrix and axis of the parabola with equation x= 2y^2+3? Thank you for helping me!
14. ### Maths 3u trig

If sinA = 1/3 and cosA<0 find the exact value of tan2A
15. ### Trig

verify following trigonometric identities. 1/sec0tan0 = csc0 = sin0
16. ### trig

when finding consecutive odd integers why would you use n, n+2 and n-2 rather than n, n+2 and n+4
17. ### Calculus....

can you show me how to maniplate this using Trig subtitution... integral dx/4+x^2 x is bounded on [-2, 2]
18. ### trig

determine an exact expression for the trigonometric function sin(13pi/12).
19. ### math Trig

find each ratio to 3 decimal places cot245degrees sec74degrees how do i do this?
20. ### Algebra 2 with Trig

what is the index of three with the square root of negative 432
21. ### trig

triangle has sides 200,172 and155 find area
22. ### trig

How do you write the quadratic equation with integer coefficients that have the roots 7-3i and 7+3i?
23. ### math

what is 7-2i in trig form? and if u=3j and v=7i+j what is the dot product of u times v don't get this one because there are no i terms for u thanks

26. ### Trig

f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.
27. ### trig/functions

what does y=2 sin (x-pi/ .5) -1 look like on a graph with the 3 phases of the function?
28. ### trig

convert to degrees, minutes and seconds 3pi/2 radians can u plz help
29. ### trig

using the given point (9, squareroot 19) find the value of cosx
30. ### trig

If an equilateral triangle has a side of 10 ft what is its altitude to two significant digits
31. ### Math calculus-Trig

Find the area bounded by the curve and the lines y = -x^2 - 4x; y = 1; x = -3; x = 1
32. ### trig

solve for exact value for x between 0 and 2 pie 3sin2(x)-cos2=2?
33. ### Trig

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

find the least positive value of @. sec (4@+10)cos(3@+17) @=theta
35. ### trig

Find the solutions to the equation cos2x=sinx and 2cos^2x-3cosx-3=0
36. ### Trig

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

30-60-90 triangle has a hypoteneuse of 10 use trig to find the short side
38. ### trig

find the value of alpha cotalpha=1.3692847 is 0.023903 correct?
39. ### trig

Help find the general solution to:sin^2x-3cosx+sinxcosx-3sinx=0
40. ### trig

Help find the general solution to:sin^2x-3cosx+sinxcosx-3sinx=0
41. ### 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
42. ### trig

PERIMETER OF A RECTANGLE IS 32CM AND AREA IS 55CM FIND THE LENGHT.
43. ### Trig

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

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

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

-Find sin(x+y), cos(x-y), tan(x+y) and the quadrant of x+y sinx=-3/5, cosy=-7/25, x and y in Q3
47. ### trig

find sin of theta if cos is less than 0 and cot equals 3
48. ### trig

cos t=.7, tan t<0. find the values of the other 5 trigonometric functions.
49. ### trig

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

Find the exact value of the trigonometric function. -cot(pi/4 + 16pi)
51. ### trig

Find ALL solutions to the equation on the interval [0, 2pie]: 2sin(1/2X) = 1
52. ### Trig

sinAsin2A+sin3Asin6A+sin4Asin13A/sinAcos2A+sin3Acos6A+sin4Acos13A = tan9A
53. ### trig

in this right trianlge ABC, m<c=90, m<a=63, and AB=10. if BC is represented by a, then which equation can be used to find a?
54. ### Trig

Solve Sinx=Cos2x-1 for all values between 0 and 2pi
55. ### TRIG

IF Y=5+7C0S 4(0-7). FIND YWHEN 0=42 DEGREES. SMALLEST POSITIVE VALUE OF 0 FOR WHICH Y=1.5
56. ### Trig

y=sin(2pi*x-pi) find the amplitude, period, and phase shift

58. ### trig

Determine whether the vectors are parallel, perpendicular or neither. 1) v = (4,1), w = (1,-4) 2) v = (2,3), w = (4,6) 3) v = (2,3), w = (3,-3) Please and thanks!
59. ### trig

write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians.
60. ### trig

how can you find points of a tri equation at orgin 1/4, 1/2, 3/4, and end of the period
61. ### trig

determine the amplitude,period and phase shift of y=-2cos(pix-3)
62. ### TRIG

Given that tan¤=3/4 and ¤ is in the second quadrant find sin2¤ (¤=theta)
63. ### TRIG

Given that tan¤=3/4 and ¤ is in the second quadrant find sin2¤ (¤=theta)
64. ### Trig

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

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

verify the following identity: 2sinxcos^3x+2sin^3cosx=sin(2x)
67. ### Caculus:Integration Inverse Trig

integral of (4/(x times the square root of( x^2-1)) + (1+x+x^3)/(1+x^2)dx
68. ### Calculus 1 Integration Trig Inverse

integral of (4/(x times the square root of (x^2-1)) + (1+x+x^3)/(1+x^2)dx
69. ### Precalc/Trig

what angle does the line y=6/7x make on the xy plane with a positive x axis?
70. ### Precalc/Trig

what angle does the line y=6/7x make on the xy plane with a positive x axis?
71. ### Precalc/Trig

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

use an angel sum identity to verify cos2theta = -2cos^@-1
73. ### Math

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

Which of these functions has period 7? A)y= cot 7/pi x B)y= tan pi/7 x C)y= sin 7/pi x D)y= cos pi/7 x
75. ### Trig

Determine the number of triangles with the given parts. b=24 c=29 B=40deg I got 1
76. ### trig, math

Given triangle ABC with a = 16, b = 14, and β = 54°, find the value of c.
77. ### 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
78. ### Trig 2

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

what is the angle of elevation of a 15 foot ladder leaning 12 feet up a building?
80. ### 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
81. ### trig

if x is a positive acute angle, then express tan(180+x) as a function of x
82. ### Pre-Calc/Trig...

Write the equation y = log x in exponential form.
83. ### Pre-calc/Trig

For each parabola, find the vertex and focus. x= (1/400)y^2 y= 1/8(x-3)^2-1
84. ### trig

If cos A= -6/7, in quadrant 2, determine the exact value of tan 2A I don't understand how to do this?
85. ### Calculus

1. integral (x^3 * sqrt(x^2-4)) dx I'm confused on how to start this problem, if I am doing trig substitution.
86. ### Maths trig

Sketch the graphs of f(x)=3overx+1 and g(x)=-2x-4 on the same set of axes
87. ### Pre-calculus/ trig

Given the vectors a= (-1,9) and b= (4,2) explain the difference between a-b and b-a. Thank you for your help! :)
88. ### trig

2(sinx)^2-5cosx-4=0 Solve for all solutions between [0,2pi]
89. ### Trig

Just confused. Given tan(A) = 2 and A is in Quadrant I, find sin(2A). A. 0 B. 1 C. 1/2 D. 4/5
90. ### Trig

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

find all solutions of 2sinx=1-2cosx in the interval from 0 to 360
92. ### 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.
93. ### trig

Find all solutions in the interval [0, 360) 8cos^2x+6cosx+1=0
94. ### Trig help

Which of these is equivalent to 3π/5 rad ? A) 108° B) 150° C) 216° D) 300° I'm thinking A
95. ### alg

Sound intensity (loudness) varies inversely as the square of the distance from the source. If a rock band has a sound intensity of 100 decibels 25 feet away from the amplifier, find the sound intensity 50 feet away from the amplifier.
96. ### Alg 1

The owner of a hair salon charges \$20 more per haircut than the assistant. Yesterday the assistant gave 12 haircuts. The owner gave 6 haircuts. The total earnings from the haircuts were \$750. How much does the owner charge for a haircut? Solve by writing and solving a system ...
97. ### Alg 1

Factoring to solve quadratic equations: Use the Zero-Product Property to solve each equation. Write your solution in roster form: The volume of a storage tub shaped like a rectangular prism is 24 ft^3. The height of the tub is 3 feet. The width is w feet and the length is w+...
98. ### alg

a garden has width ã13 and length 7ã13. whats the perimeter of the garden in the simplest radical form a) 14ã13 units b) 16ã13 units c) 91 units d) 8ã13 units
99. ### alg

solve equation g+4/g-2=g-5/g-8 another qustion an elliptical track has a major axis that is 80 yrds long and minor axis 72 yards long find an equation for the track if its center (0,0) and the major axis is the x axis
100. ### trig

Determine the height of a tree which casts a shadow of 13.7m when the sun is at an angle of 28 degrees.