alg/trig

4,413 results, page 10

  1. trig

    cos 8 degrees fo feet 25 inches??
  2. trig

    Solve system of inequalities by graphing Y<2-x Y>x+4
  3. trig derivatives

    How do I find the derivative of 6 + 8cosx?
  4. trig

    What is inverse cot of negative radical 3/3
  5. trig

    What is the exact value of 19 pie divided by 12.
  6. Trig

    Triangle ABC has B= 137degrees, A=31.6 in., and C=42.8 in. Find B.
  7. trig

    Cos 3 alpha = - 0.1 solutions in degree
  8. trig

    differenthate sin8x from first principle?
  9. Trig

    Prove that 1 + tanAtanA/2 = tanAcotA/2 -1 = secA
  10. trig

    What is the fundamental period of the function f(x)=4/9sinx
  11. trig

    how can we find the value of sin -720
  12. trig

    4 costheta +3sintheta=5,4sintheta-3costheta=WHAT
  13. Trig

    if tan(x)=9/4, find cos(x) if pi<x<3pi/2
  14. trig

    if sin 7x = cos x+10 find the value of x
  15. trig

    Simplify the expression cos^2 x (sec^2 x-1)
  16. trig

    2cos^2 22.5-1 (find exact value)
  17. trig

    cos(sin^-1 x)=sq rt(1-x^2) prove the identity
  18. trig

    if sin2x=3sin2y, find 2tan(x-y)
  19. Trig

    Find the co terminal angle for 15pi/4
  20. Trig.

    Subtract. Simplify is possible. (x^2-3x-28)/(x^2-x-42) -(x^2+10x+24)/(x^2+x-12)
  21. trig

    Find the dot product of u and v u= 3i+7j v= 11i-5j
  22. trig

    two dice are rolled, find p(2,then 3)
  23. trig

    find the exact radian of 84 degrees
  24. trig

    find the angle between vectors U= <2,3> and V= <1, -5>
  25. trig

    what is the exact value of sin[tan^-1(2/3)]
  26. trig

    sec8A-1/sec4A-1=tan8A/tan2A
  27. 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 and f(x)=x^2/x+1
  28. trig

    Find the domain of each function. f(x)=Sqareroot of 5-x f(x)=x^3/x^2-16
  29. trig

    2 cos(theta-13)= square root of 3
  30. trig

    (1 + sinx)(secx - tanx) = cos x
  31. TRIG

    (cotx + cscx(1-cosx)= SIN x
  32. Trig

    cos x cot = csc - sin
  33. Trig

    What re the roots of the following polynomial equation (x+5)(x+2)(x-5)=0
  34. trig

    How do I find the exact value of sin (pi/24)?
  35. trig

    if sin 41'=m. write m in terms of cos 41'
  36. trig

    What happens when you try to elevate sin-1(3/2)?
  37. Trig

    Rewrite 6x^2 - sqrt(3)xy + 5y^2 - 9 = 0 with the xy term eliminated.
  38. Trig

    Convert 2xy = 1 to polar form.
  39. math

    simplify sin(540-2x) this is to do with trig
  40. TRIG

    What is the 6th term of the geometric series with a1= -5 and r=2.5
  41. trig

    If (m+2)sin ø + (2m-1)cos ø = 2m+1 then tan ø is equal to
  42. trig

    determine the period of the function. y = cot 4t
  43. trig

    Multiply and simplify. (cos x - sin x)^2
  44. Trig

    Multiply and Simplify. ( 1 + cot θ )^2
  45. trig

    simplify the expression. -sin^2x-cos^2x
  46. trig

    simplify the expression. cot^2(x)-csc^2(-x)
  47. trig

    Which expression is equivalent to csc x - sin x?
  48. trig

    Evaluate and simplify tan 5π/12.
  49. trig

    tan^2(5x)cos^4(tx = 1/8 - 1/8cos(20x)
  50. trig

    tan^2(5x)cos^4(5x) = 1/8 - 1/8cos(20x)
  51. Inverse Trig

    What is the general solution to y = arcsin 1?
  52. Inverse Trig

    What is the general solution to y = arcsin 0?
  53. Trig

    What is the sum of the arithmetic series where n=50 , t1=9 and t2=331
  54. Precal/trig

    sina=3/5, pi/2<a<pi evaluate cos2a
  55. Pre-Calc/Trig...

    Assume f(x) = -2x + 8 and g(x) = 3x. What is the value of (f + g)(-1)?
  56. Pre-Calc/Trig...

    vertex form:y-4=-(x-4)^2
  57. trig

    Solve R=3(1-sin theta) and graph
  58. trig

    what is the reference angle for 11π/6? how would i do this?
  59. Trig

    How do you derive this identity? Cos(t)=1-sin^2(t/2)
  60. Trig/ algebra 2

    if f(x) = sin4x-cos2x, find f(pi/8)
  61. Maths trig

    Sketch the graphs of f(x)=3overx+1 and g(x)=-2x-4
  62. Trig

    (Tan/cot)- (sec/cos)
  63. Trig

    Help me find out how to do csc5pi over6
  64. Trig

    Solve for [0,2pi) 2cos4x + sqrt3 = 0
  65. trig

    sec = 7/2 and is in Q1, then what is double angle of tan?
  66. MATH

    Integrate 1/(x(x^2+1)) dx using trig substitution
  67. Trig

    if sin(x)=-0.5 and x is in the third quadrant, find x
  68. Trig

    4x+y=​0, x≥0 help finding Sin, Cos, Tan for this
  69. Trig

    cotxcosx/csc^2x-1 Please help me verify
  70. Math (Algebra 2 / Trig)

    y=x^2+bx+7 has a vertex at (-4,-9). What is the value of b?
  71. ALG WORD PROBLEM

    The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 9 amperes when the resistance is 940 ohms. What is the current when the resistance is 580 ohms? Thank you yet again. Almost through with this part of the class thank ...
  72. college alg.

    An event in the Summer Olympics is 10-meter springboard diving. In this event, the height s, in meters, of a diver above the water t seconds after jumping is given by s(t) = –4.9t2 + 7.1t + 10. What is the maximum height that the diver will be above the water? Round to the ...
  73. Alg. 2

    I know how to graph polynomial functions, but i'm having a hard time getting the second point on this one. f(x)=x(x-1)(x+2)(x+2). I graphed my zeros and made the right arrow go up and the left arrow go down. I plotted my first point by pluggin in -1. My first point is (-1,2). ...
  74. Precalculus/Trig

    I can't seem to prove these trig identities and would really appreciate help: 1. cosx + 1/sin^3x = cscx/1 - cosx I changed the 1: cosx/sin^3x + sin^3x/sin^3x = cscx/1-cosx Simplified: cosx + sin^3x/sin^3x = cscx/1-cosx I don't know where to go from there. 2. (sinx + cosx)(tanx...
  75. Alg 2

    Today we learned how to solve systems of equations with 3 variables, however my teacher didn't go over how to do a problem where not every single equation in the system has the 3 variables. Can someone point me to a place that explains this? the kind of problem im talking ...
  76. alg.

    Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola with the given equation. y = 8x2 + 48x − 3 vertex (x, y) = _____________ axis of symmetry _____________
  77. trig

    For each expression in column I, choose the expression from column II to complete an identity: Column I Column II 1. -tanxcosx A. sin^2x/cos^2x 2. sec^2x-1 B. 1/sec^2x 3. sec x/cscx C. sin(-x) 4. 1+sin^2x D.csc^2x-cot^2x+sin^2x 5. cos^2 x E. tanx I figured #1 is C, #2 is A, ...
  78. alg application

    two cars leave the station at 9:00 am. the first car head due south at an avg speed of 54mph. the second car heads due west at an avg speed of 72mph. how far apart will the cars be at 1:00pm? my solution: 360mi is this correct
  79. alg

    A clothing company uses the expressions that follow to estimate revenue and expenses based on the production of x lots of clothes: Revenue: Expenses: The ratio of revenue to expenses is represented by the rational expression that follows: A. Factor the numerator and ...
  80. Alg. 2

    if you invest a total of 1000 dollars, part at 6% and part at 8%, if you invest x dollars at 6%, then how much do you invest at 8%?
  81. trig

    if sin2x=3sin2y, prove that: 2tan(x-y)=tan(x+y)
  82. trig

    Graph the followiing function from x + 0 to x = 4 pi y = 3 cos squared x/2
  83. Trig

    Find the exact value of: tan(-3pi).
  84. trig

    eliminate the parameter t from the following x = 9sin t y = 9cos t
  85. trig

    If a = 5 cm and b = 3cm, use the Pythagorean Theorem to find c
  86. trig

    If an angle is 1 radian, what is the arc length in radians?
  87. Trig

    What is sin^2 - cos^2 x/ 1-2cos^2 x, using the identities.
  88. trig

    solve 2sin^2x+sinx-1=0 in the interval [0, 2pi0
  89. algebra with trig

    how do you solve an inequality and graph it's solution?
  90. trig

    for a tangent graph is one of the asymptotes AWLAYS at - pi/2 ?
  91. trig

    simplify cosecant (2(square root of 3) divided by 3
  92. Trig

    given sin(4x)=5/13 in Q II find Tan(2x) and cos(2x)
  93. trig

    how do i solve tan(165) and sin(285)
  94. trig

    unscramble these letters into 3 words: rceureigthorty
  95. trig

    2cosx+sinx+1=0 how do I get everything in one function?
  96. trig

    Solve for X. Leave answers in logarithmic forms. 3^(2-x) = 2^x Thanks.
  97. Trig problem

    What is a coterminal angle with 170 degrees?
  98. trig

    solve sin x-1=0 for 0degress<x<360 degrees
  99. trig

    How do I find the "exact value" for the arcsin of -pi/3 radians?
  100. trig

    Find sin è/2 for cos è = 1/4 and è lies in Quadrant I.
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