4,424 results, page 16
  1. trig plz help

    Solve, finding all solutions in the interval [0, 2π). tan(3x) = -1
  2. TRIG

    find: sin 23pi/12 i got totally the wrong answer how do i approach this?

    integrate 1/(x^2sqrt(1+x^2)) i know you have to use trig sub but iono how to cancel out some terms...much help is appreciated
  4. trig

    Write the measure in radians. Express the answer in terms of ð -260°
  5. trig

    find exact value using sum or differnce equations. tan(19pi/12)
  6. trig

    how come you get different answers if you take different paths in trigonometry? (when you choose to use sin, cos or tan)
  7. trig

    How do you find all the solutions of the equation in the interval [0,2π)? 3tan^3x=tanx
  8. trig

    determine an exact expression for the trigonometric function sin(13pi/12).
  9. Pre-calc/Trig

    For each parabola, tell in which direction the graph opens. x= 1/2y^2 y= -1/24x^2
  10. Trig help

    Which of these is equivalent to 3π/5 rad ? A) 108° B) 150° C) 216° D) 300° I'm thinking A
  11. math, trig

    What is the exact value of the cos of 23pi/12? (Twenty-three pi over 12, which is = to 345 degrees.) Thank you
  12. Pre-calc, Algebra, Trig

    (2x squared-3x +1)(4)(3x+2)cubed (3)+(3x +2)raised to the 4 (4x-3) Simplify
  13. trig

    Use half-angle formulas to find the exact value for the following cot 75 degrees
  14. grade 12 trig

    If cos A-1=0, where 0<or= A< 2pi, then A=? The answer I got was pi/3,5pi/3. I don't know where I went wrong can you please help. thanks
  15. trig

    In triangle ABC, find <A to the nearest tength of a degree is m<B=95 degrees , b=15.4, a=8.0
  16. Trig

    Find the area of the triangle. b=125 c=162 <B=40 (b and c are the sides) (<B is the angle)
  17. Trig Math

    Solve the equation algebraically for x wohere 0 </ x< 2 pi. sin2 x = cos x
  18. 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.
  19. Trig

    Find the distance from pi. 7 pi/6. I subtracted 2 pi from this and got -5pi/6. But the correct answer is pi/6. Whwere did this come from?
  20. trig

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

    Which basic trigonometric function has the same graph as y= -cot(x+(pi/2)).Please justify your answer.
  22. TRIG,

    Can you solve and show me the work in these two equations? cos(3x)=-1 tan (theta)=-1
  23. trig

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

    Please solve this equation. As you write down the steps, please give me a description on what you did. y^3 - 16y^3/2 + 64 = 0
  25. trig

    how to do the calculation while taking 'A' as 15 in the half angle formula used for calculating the value of sin 7.5 ?
  26. trig

    hoW to evaluate these if cos=-12/13, A in Q II and cot B =5/12, B in Q III A) Sin^2 A (the sign ^ is power of)
  27. Trig Proofs

    Please Help: please solve this proof: cosx- cosy = -2sin(x+y/2)sin(x-y/2)
  28. trig

    triangle has sides 200,172 and155 find area
  29. 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
  30. trig

    solve each equation if 0 < x < 2pi. answer must be in radians 1. 4 cos x - 2 = 0 2. 3 sec^2 - 4 = 0
  31. Trig.

    Why is the arctan of (- square root of 3) 5 pi/6. How come it isn't broken down to 5 pi/3 since I got 10 pi/6 and that reduces to 5pi/3
  32. trig

    find all sets of three consecutive odd integers whose sum is greater than 54 and less than 63
  33. Pre-Calculus/Trig...

    Help Please For the function defined by: f(x)= (x^2,x≤1) (2x+1,x>1) Define f(0). and also how would i graph f(x)?
  34. trig

    Use the double angle formula to verify the identity cotxsin2x=1+cos2x
  35. Trig

    Use the half angle formula to find the exact value of tan 7 pie/8
  36. trig

    transform the expression on left to one on right csc x-sin x to cot x cos x
  37. trig

    how do you use doubel-angle formulas to find sin, cos, and tan
  38. Trig

    f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.
  39. Trig

    Hi. Can somebody help me solve this equaton with EXACT answers? ----- sin3x = 0 ----- Thankyou! All help is appreciated.
  40. Pre-Calc/Trig

    Help me please. List all possible rational zeros for the polynomial function. p(x)=3x^3-2x^2-5x-2
  41. Trig

    How do you find an equation of a line perpendicular to y=x at the point (5,5) in standard form?
  42. Pre-Calc/Trig

    y=-x^2+5x+36 converting into intercept form is this the correct answer? y=(x+9)(x-4)
  43. trig

    write down the value (corect to three decimal places of:- a) sin64= b) tan21= c) cos67.4=
  44. Trig

    Determine the quadrant in which each lies: sec0<0,cot0<0 sin0<0,tan0>0
  45. trig

    Rewrite 3pi/25 in degree measure. Round to three decimal places.
  46. trig

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

    find the exact value by using the appropriate half-angle identity: sin(5pi/12)
  48. trig

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

    find the exact value of each expression. do not use a calculator. Sec 3.14/4 + 2 csc 3.14/3 4 + tan 2*3.14/3
  50. trig

    Express each value as a trigonomic function of an angle in quadrant I: Cot(-660)
  51. Pre-Calc/Trig

    I have looked this up, but still cant figure out what it is.. What is the projectile motion function?
  52. trig

    Determine a pair of coterminal angles in radian measure to the angle pi over 2
  53. trig

    Find all solutions of the equation 2sin^2x-cosx=1 in the interval [0,2pi) x1= ? x2=? x3=?
  54. trig

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

    Prove the identity. (must work with left side) (1-2sin(x)^2)=(cos(x)^2)
  56. Calculus (trig stuff)

    given a angle how do I find it's point P on the unit circle?
  57. trig

    How do you find the exact value of an inverse function geometrically. ie, tan(cos-1(4/5))
  58. Pre-Calc/Trig...

    Which of the following could be an example of a function with a domain (-oo,oo) and a range (-oo,2)? Check all that apply. A. y= -(3)^x+2 B. y= -(3)^x-2 C. y= -(0.25)^x+2 D/ y= -(0.25)^x-2
  59. trig

    if p and q satisfy the equation atanx+bsecx=c then prove tan(p+q)=2ac/a2-c2
  60. trig

    if x is a positive acute angle, then express tan(180+x) as a function of x
  61. math Trig

    find each ratio to 3 decimal places cot245degrees sec74degrees how do i do this?
  62. trig

    evaluate the trigonometry function using its period as an aid cos(-7pi/3)
  63. Pre-Calc/Trig...

    Help me please. Solve the equation: (x-3)(x+2)=0 Enter the solution with the lowest value.
  64. Quick Math trig question

    Would sin^2x / cos^2x equal tan^2x?
  65. trig

    Write an expression that gives all solutions to the equation sin x + cos x = - radical 2
  66. Pre-Calc/Trig...

    Write the equation y = log x in exponential form.
  67. Pre-Calc/Trig...

    am i correct? What is the axis of symmetry for the graph of y=2x^2-4x+2? x=? the line goes through 1? x=1
  68. Alg 1

    You have 60 megabytes of space left on your portaable media player. You can choose to download song files that use 3.5 megabytes or video files that use 8 megabytes. You want to download at least 12 files. What is a graph showing the numbers of songs and
  69. 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.
  70. Pre-Calc

    Consider a triangle ABC. C is a right angle, and side a is opposite angle A, side b is opposite angle B, and side c is the hypotenuse. The measure of side a= 2, side b= 7, and side c= 7.3 How do you find the angle measure of A and B based on the lengths of
  71. 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
  72. Alg II

    I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^4-6x^3+12x^2=6x-13 I used a graphing calculator to find the real roots of 1,-1 Then I did synthetic using -1, and I ended up with the equation
  73. Alg II

    I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^4-6x^3+12x^2=6x-13 I used a graphing calculator to find the real roots of 1,-1 Then I did synthetic using -1, and I ended up with the equation
  74. 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
  75. ALG 2!!!

    6. What is the slope of the line represented by the equation x = -9? 7. Write an equation of a line with a slope of 0 and passing through the point (5,4). Hint: To answer this question, consider the type of line that has a slope of 0. Then write an
  76. elem alg

    On a certain test, the student gets 3 points for each correct answer and loses 2 points for each incorrect answer. The test has 37 questions total. (no question can be lfet blank.) If x is the number of answers a students gets correct, write and express
  77. math please help

    use an inverse trig function to write theta as a function of x (There is a right triangle drawn. The hypotenuse is 2. Theta is the angle between the base and the hypotenuse. The base/adjacent side of theta is labeled(x + 1) The side opposite theta does not
  78. 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%?
  79. trig

    Find all values of ¸ in [0°, 360°) that satisfy the equation. 2 sin 2θ - √(3) = 0
  80. trig

    Find all real numbers in [0, 2π) that satisfy the equation. cos 2x = √(2)/2
  81. Trig

    Which trigonometric function can equal or be greater than 1.000? A Sine B Cosine C Tangent D none of the above
  82. trig

    3tan(3x) = sqrt(3) Solve the equation for exact solutions of the interval [0,2pi).
  83. Trig

    Find the general solution for the equation 4tanx+cotx=5?????? and the steps please? THANYOO!
  84. trig

    how can you confirm the identity cos^4x = (1/8)(3+ 4cos2x+ cos4x) and sin4x = (4sinxcosx)(2cos^2x-1)
  85. Pre-Calc/Trig...

    I have one way, but cant think of another? Show two ways of finding y if y = log4 64. Explain your thinking. 4^x=64 x=3
  86. trig

    ABC is an isoscele triangle in which [AB]=[AC]=5cm and [BC]=6cm. Calculate [AM], where M is the mid-point of BC.
  87. Pre Calc Trig

    Verify the following: tan( a + p/2) = -cot a a= alpha and p= pie since I do not have that button.
  88. Trig

    Find the exact value of each of the following using reference angles. a)sin 225degrees b) cot 120degrees
  89. Trig

    find the equation for the cosine function that has an amplitude of 3/5, a period of 3pi/2 and a y-intercept of 5.
  90. trig

    If $5000 is invested at a rate of 3% interest compounded quarterly, what is the value of the investment in 5 years?
  91. Precalc/Trig 1

    What equation would you use to show that the point ((square root of 11)/(6), (5/6))is on the unit circle?
  92. Trig 4

    Can someone break down the meaning of sin, tan, and cos into simpler more understandable terms?
  93. trig

    evaluate the expression: cot 270 + 8 cos 180 + 5 sec2-360
  94. Trig....

    use specific triangles and the unit circle to geth the values. tan(5pi/6?)
  95. trig

    In Rights Triangle ABC with C=90 degrees if a=4 and c=2square roots of 7, find SinA
  96. trig

    find the 5 other thrig functions if cos(theta) = square root of 2/2 and cotangent is less than 0
  97. trig

    Find cosq and sinq if the terminal side of q lies along the line y = - 2 x in quadrant IV.
  98. Trig

    Find the 6th term of the arithmetic sequence with a9=120 and a14=195
  99. trig

    tan=.6524 use a calculator to approximate two value of an angle (0<0<360) that satisfy the equation.
  100. functions and trig

    write the transformation of X cubed if it is shifted right four units and then reflected over the X axis


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