alg/trig

4,413 results, page 20

  1. trig

    Suggest a sine function that will "imitate" the cosine function by manipulating ONE of a,b,c or d. Thank you
  2. trig

    Suggest a cosine function that will "imitate" the sine function by manipulating ONE of a,b,c or d. Thank you
  3. trig

    Find the exact value of cot 45°, if the expression is undefined write undefined.
  4. trig

    If A+B+C=^(^=180) prove that sinA + sinB - sinC = 4sinA/2 sinB/2 cosC/2
  5. Trig please help!

    sin^6 x + cos^6 x=1 - (3/4)sin^2 2x work on one side only!
  6. trig!!

    sin^4 x (cos^2 x)=(1/16)(1-cos 2x)(1-cos4x) work one 1 side only!
  7. Trig

    triangle with side lengths 172m, 155m, and 155m. calculate the area.
  8. trig

    DISCUSS THE POSSIBLE VALUES OF THETA IF THE RATIO IS COS THETA IS EQUAL TO 0
  9. trig

    Verify the Identity: sec(x/2)=the square root of (2 tanx/(tanx sinx))
  10. Trig

    Solve the equation in the interval [0•,360•] Csc theta = 1+cot theta
  11. trig

    explain the methid used to get the answers 45m*cos33=37.7m and 45m*sin33=24.5
  12. Trig

    How do you convert rectangular equations into polar equations? If x4−y4=xy , then r2=atan(b); What is a? What is b?
  13. trig

    i have to find a & c, b=2.489*10 to the nineth power and i have one degree 25
  14. trig

    the question is: given sec x = 4, tan x < 0, find sin(2x), cos(2x)and tan (2x)
  15. Math/Trig

    Solve: 2 cos2 x - 3 cos x + 1 = 0 for 0 is less than or equal to x is less than 2pi.
  16. trig

    prove the identity sec^2x times cot x minus cot x = tan x
  17. trig

    if sina,cosa,tana are in geometric progression then prove that cot^6a-cot^2a=1
  18. trig

    convert the point with polar coordinates (2,7pi/6) into rectangular coordinates.
  19. trig

    Verify the equation is an identitiy: cot(x)tan(x+pi) - sin(pi-x)cos((pi/2)-x) = cos^2x Thanks
  20. trig

    The tangent of an acute angle equals 1/2. What is the sine of the angle? (A) 1/p3 (B)p5/2 (C) 2/p5 (D) 1/p5 ( E) None of the above.
  21. trig

    5. If the angles X and Y each measure between 0° and 90°, and if sinX = cosY, what is the sum of the measures of the angles X and Y?
  22. trig

    How do I solve.... Tan 2(theta) - Cos 4(theta) = 0 Domain: (0-360 degrees) Thank you.
  23. Math/Trig

    Which logarithmic equation is equivalent to L^m = E 1) LogL E = m 2) logE L = m 3) logm E= L 4) logE m= L
  24. trig

    solve the equation of the domain 0¡Ü¦È¡Ü2¦Ð 3cos^2theta - 5costheta -1 = 3sin^2theta
  25. trig

    given cot-A square root of 5, find cot-B at the 4th quadrant.
  26. TRIG

    Given that tanx = 1/sqr(15) and secx -4/sqr(15) find the value of sinx
  27. trig

    if tan x= 4/3 and pip < x < 3pi/2, and cot y= -5/12 with 3pi/2 < y < 2pi find sin(x-y)
  28. Trig

    True or False: For a one-to-one function, y = f(x),then x = F^-1(y). Explain your answer. Please help.
  29. Precalculus with Trig

    Rewrite the following expression as an algebraic expression in x: cos(arcsin(x))
  30. trig

    PROVE: Cos 2theta = .5 (cot theta - tan theta) Please help me
  31. math trig

    a triangle abc has a mearsure of an adjacent 15 and 25 degree solve for the triangle
  32. Pre-Calc/Trig...

    Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=x^2+7
  33. Pre-Calc/Trig...

    Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=(x+5)^2
  34. Pre-Calc/Trig

    How would I solve this one? I just can't get this one. 6x^2+11x-35=0
  35. trig

    solve triangle ABC which have angleA=25.25,angleB=60.51 and a=3.82..find c...,find b
  36. trig

    A road has a 10% grade (slope). To the nearest degree what is the angle of elevation of the road?
  37. Trig

    Find the algebraic expression that is equal to sec theta - cos (-theta)
  38. Trig

    Find sin(x+y), cos(x-y), tan(x+y), and the quadrant of (x+y) if sinx= -1/4, cosy= -4/5, with x and y in quadrant 3.
  39. Math (Trig) lowering powers

    If cos^4(3x)-sin^4(3x)=cos(g(x)) then g(x)=? Use a^4-b^4=(a^2-b^2)(a^2+b^2)! thanks in advance for any help!
  40. trig

    if sec theta =sqrt -20/3 state the exact value of tan theta
  41. Math (Trig)

    Solve the equation for exact values of x. sin(x) = 1-2(sin(x))^2
  42. simplyfying expressions (trig)

    can anyone tell me how to do this? thanks! (sin (x) / 1 + cos (x) ) + ( cot (x) / 1 + cos (x) )
  43. Algebra II/Trig

    Simplify: 1/5(-5a^2b^3)^2(abc)^4 How do you simplify this. How does the "-5" play a role in this? how would you get 1/5 of "-5"
  44. Trig Proofs

    Please solve this proof Tan(pi/4 +x)+ Tan(pi/4+x)= 2Sec2x
  45. 11th grade Algebra 2/ Trig

    The expression log 10^(x+2)- log 10^x is equivalent to???
  46. trig

    unsure how to find phase shift,vertical shift of y=-2cos(x+3.14/4)+5
  47. trig

    determine the coterminal angle between -360 and 360 for -540
  48. trig

    How do you find the exact values of sin(u/2), cos(u/2), and tan(u/2) of tan(u)=-5/8
  49. trig

    How do you convert polar coordinates to Cartesian coordinates? And vise versa.
  50. trig

    tan(theta)=(7/24), sin(theta)<0 find cos(2theta)
  51. Trig

    Tan theta 12/5 ,pi <theta<3pi/2 Find sin 2theta
  52. trig

    If cscx=2 and x greater 90 degrees and x less than 180 degrees, then sin x/2 =
  53. trig

    Plot the point and then find three representation of the point (3,2pi/3)
  54. trig

    Suppose that sin x = 1/5 and cos y = 2/3, and x and y are each angles in Quadrant 1. Determine sin(x+y).
  55. trig

    let sin theta = -7/25 with theta in QIV find sec (2theta)
  56. trig

    True or false? If A and B are angles of a triangle such that A > B, then cos A > cos B.
  57. trig

    angle x lies in quadrant 3 and cos(x)=-.6. Find cos(3pi/2-x)
  58. trig

    an angle 30 with the distace of 24km and an angle of elevation of 45 with the distance of 15km.
  59. trig

    how do you solve 2nd cos 6/11 (my calculator doesn't have 2nd function0
  60. trig

    Verify that each trigonometric equation is an identity tan^2+1/sec α =sec α
  61. trig

    Find sin(2theta) if tan of theta = 7/24, pi < theta < 3pi/2 ?
  62. trig

    Derive the identity 1 + cot ^2 theta = csc^2 theta by dividing x^2 + y^2 = r^2 by y^2
  63. trig

    1.Ifg(x)=cos4x,find g'(pie/24). 2.Differentiate y=csc^2 pie*x
  64. trig

    To the nearest degree, determine the measure of <X for each value of tan X if the tan X = 0.25
  65. Trig

    Solve the equation in the given domain cos 4x + cos 2x = 0, 0<(or equal to) x < pi
  66. trig

    A and B are acute angles such that cosA =3 over 5 and cosB =12 over 13
  67. trig

    Prove that the statement is an identity: (tanx/cscx)=(1/cosx)-cosx
  68. Trig

    what quadrant is this in and please explain... sin theta < 0, cos theta > 0
  69. trig

    Please explain to me how to get this -- what quadrant tan theta < 0, sin theta < 0 is in.
  70. trig

    Find y if the point (7, y) is on the terminal side of θ and cos(θ) = 7/25
  71. trig

    If csc theta = 2, then what is theta approximated to 4 decimal points? RADIANS
  72. math/cal/trig solve for t

    solve for t: 0=4sin(2t)cos(2t)-sin(2t)
  73. trig

    If sec theta = radical 5, what is the exact value of cos theta
  74. trig

    If sec theta = radical 5, what is the exact value of cos theta
  75. trig

    find the single term of cos^2 4theta - sin^2 4theta
  76. Precalc/Trig

    Find all values of x, 0<x<(pi/2) for which (1/( root 3))<cotx<(root 3)
  77. trig

    Find the Opposite of the right angle where the angle is 61 degrees and the Adjacent is 10 cm.?
  78. Trig

    The point P(3, 4) is on the terminal side of θ. Evaluate tan θ. 3/4 3/5 4/3 4/5
  79. Trig

    How do I prove that tan(x/2) =( plus/minus) sqrt(1-cos(x/1+cos(x))
  80. Trig

    Simplify (sin^2)*(67.5deg) - (cos^2)*(67.5deg) and then evaluate exactly.
  81. Trig

    Verify that each trigometric equation is an identity. 1/1-sinx + 1/1+sinx = 2 sec^2x
  82. Advanced Functions/Trig

    Prove the identity: cos^4 x + sin^4 x = 1 - (1/2)sin^2 (2x)
  83. trig, math

    In a right triangle with g the right angle, b = 86.5 and c = 125.8. What is β ?
  84. trig

    Find all solutions in the interval [0,2pi]. sin 2x + sin x = 0
  85. math trig

    a triangle has a measured of hypoteneuos 15 and an adjacent of 10 solve for the triangle.
  86. Trig

    Given sin x = 5/13 and 0 < x < pi/2 find the value of sin(π − x). 12/13 5/13 -12/13 -5/13
  87. Pre-Calc/Trig...

    Help me please. Simplify 1. √-36 2. -√-625
  88. trig

    If each leg has length 5 meters, what are the lengths of the other leg and the hypotenuse
  89. Trig

    Solve for t algebraically: inverse cos(t) = inverse sin(t). Where do I start?
  90. Trig

    Is a triangle that has sides which measure 8, 15, and 17 a right triangle? Justify your answer, ie,
  91. trig

    sin2piex-cos5piex Is this a sinusoid? No. because 2 pie x and 5 pie x are not the same/equal.?
  92. math

    Trig Identities prove sinx+1 \ 1-sinx = (tanx+secx)^2
  93. trig

    convert 80 degrees into radians 80 deg *2PI rad/360 deg = ?
  94. Trig

    Find the area of ABC if A=56 degrees, b=20ft, and c=12ft. 1/2(20)(12)sin56 1/2(240)sin56 99.5
  95. Trig

    Verify that (secx/sinx)*(cotx/cscx)=cscx is an identity. (x=theta BTW)
  96. trig

    If sinx = -3/5, tan x > 0, sec y = -13/5 and cot y < 0, find the following: a. csc(x + y) b. sec (x - y) How do I get the answers of a. -65/33 b. -65/16 Thank you
  97. trig - identies

    Assume that A and B are in standard position and that sin A = 1/2, cos A >0, tan B = 3/4, and sinB<0 Cos (A-B)
  98. Trigonometry

    Can you please help me solve this trig equation for 0 ≤ x ≤ 2π? 9sin^2(x)-6cos(x)-10=0 Thank you!
  99. Trig

    Rules of Logarithms: Can someone explain how to do: 1) e^(2(ln)(x)) 2) e^(-lnx) I know the rules I just don't understand how they apply.. thanks!
  100. trig

    1/sinx = sinx+cosxcotx it's a proof and I have to make them equal to each other. Please help!
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