Answers edited by Nghi N.

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• How to use double angle formula to write #8cos^2x-4#?
  
• How do you prove #csc2x = 1/2(secx)(cscx)#?
  
• How do you solve the equation #1 + sin(x) = cos(x)? 1 + sin(x) = cos(x)#?
  
• What is #6/(5+i)# written in standard form?
  
• How do you graph the system #2x - 3y > 6# and #5x + 4y < 12#?
  
• Using reference angles, how do you find trig functions of cos115?
  
• Question #a98e1
  
• How to find y-intercept given (-2,1) and (5,6)?
  
• How do you find the coordinates of the terminal points corresponding to the following arc length on the unit circle: 22π/3?
  
• If a = 4, b = 5, and c = 6, how do you solve the triangle?
  
• Using the double angle formula, how do you find the function values for #cos^2(pi/12) and sin^2(pi/8)#?
  
• How do you find the solution to the quadratic equation #0=x^2+5x-36#?
  
• How do you factor # -x^2+7x+18#?
  
• How do you solve using the quadratic formula #x^2/3 + 1/2 = (5/6)x#?
  
• How do you use the half angle formula to find #sin (pi/12)#?
  
• How do you find values of trigonometric functions using the unit circle?
  
• How do you factor #2x²+15x-108#?
  
• How do you solve #4x^2-8=-13x# by completing the square?
  
• How do you solve for y in the equation #x=y+5#?
  
• How do you solve #-6 >=10 - 8x#?
  
• How do you express trigonometric expressions in simplest form?
  
• How do you factor #3x^2-x-4?
  
• How do you solve #2sin^2x+sinx=1#?
  
• Question #6f11c
  
• How do you solve using the quadratic formula #x^2+3x-4=0#?
  
• How do you solve #3x^2 + 20x + 36 = 4# by completing the square?
  
• How do you write # y=-5x^2 +x +1# in vertex form and identify the vertex, y intercept and x intercept?
  
• How do you prove that #(1-cosx)/sinx = sinx/(1+cosx)#?
  
• How do you verify the identity: #sin(A+B) = (tanA+tanB)/(secA secB)#?
  
• How do you use the sum and difference formula to simplify sec 1275?
  
• How do you find the domain and range for #F(x) = 5/(x-2)#?
  
• How do you find the domain of #f(x) = sqrt{(x - 1)/x + 4)#?
  
• How do you graph the function, label the vertex, axis of symmetry, and x-intercepts. #y = 1/2x^2 + 6x#?
  
• How do you find the value of cotθ if cosθ = -4/5?
  
• How do you convert #(7pi)/4# into degrees?
  
• How do you factor by grouping #20c^2 - 17c - 10#?
  
• How do you solve #sin(60-x)=2sinx#?
  
• How do you solve #x^2 + 2x -3 <=0#?
  
• How do you factor #6x^2+19x+3#?
  
• How do you factor 14m² +19mn - 3n²?
  
• How do you solve using the quadratic formula #2x^2 – 4x + 7 = 0#?
  
• How do you solve #sin^2x + 2sinx - 3 = 0#?
  
• How do you find all solutions of the equation #(1+cosx)/(1-cosx)=0# in the interval [0,2pi)?
  
• How do you find all solutions of the equation #sin(3x-15)=1/2#?
  
• How do you find #sin(x/2)# if #cscx=3#?
  
• Why do you need to use special right triangles?
  
• How do you write #y=x^2-2x+8# in vertex form and identify the vertex, y intercept and x intercept?
  
• How do you solve and graph the compound inequality #5 > -4x+4# or #8 <= -5x + 2# ?
  
• How do you find ALL solutions of the equation below in the interval [0, 2π) for #9sec^2(x)-12=0#?
  
• How do you write the quadratic in vertex form given #x^2-7x + 9#?
  
• How do you graph the function, label the vertex, axis of symmetry, and x-intercepts. #y=-x^2+4x+1#?
  
• How do you use the double angle formula to determine tan 300?
  
• How do you solve #cos 2x + sin x=0#?
  
• How do you write the equation of a line in point slope form that is parallel to #y=-7x+1# and goes through (-1/2, -1/3)?
  
• How does the unit circle help you in graphing the trigonometric functions on the cartesian plane?
  
• How do you solve #sin2x + 2 sinx cosx - 1= 0#?
  
• How do you use the difference of two squares formula to solve #4x^2=25#?
  
• How do you graph the function, label the vertex, axis of symmetry, and x-intercepts. #y=x^2-1#?
  
• How do you find the exact value of sinx/2, cosx/2, & tanx/2 given that #sinx= 5/13# is in Quadrant 2?
  
• Given #sin theta = 2/3# and #pi/2<theta<pi#, how do you find the value of the 5 other trigonometric functions?
  
• How do you solve #y = 2 cos 3 (x - (pi/4))#?
  
• P is a point on the terminal side of θ in standard position, how do you find the exact value of the six trigonometric functions for θ P(–8, –8)?
  
• How do you solve #sin2x=-sinx#?
  
• How do you solve multi step equations by combining like terms?
  
• How do you find all six trigonometric functions of 240 degrees?
  
• How do you use the half angle formula to simplify #cos^2(pi/3)#?
  
• How do you solve #abs(6x^2-3)<7x#?
  
• What is the new Transforming Method to solve quadratic equations?
  
• What is the new non-factoring AC Method to solve quadratic equations?
  
• What is the new AC Method to factor trinomials?
  
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