Half-Angle Identities - Page 2
Questions
- How do you use the product to sum formulas to write #4cos(pi/3)sin((5pi)/6)# as a sum or difference?
- If #sin(theta)=3/5# what is #cos(theta)#?
- How do you find the exact values of tan(5pi/12) & sin(5pi/12) using the half angle formula?
- How do you use the half-angle identity to find the exact value of sin (-pi/12)?
- How do you simplify #(2-sec^2x)/(sec^2x)#?
- How do you simplify #f(theta)=-2csc(theta/4)+tan(theta/2)-3cos(theta/4)# to trigonometric functions of a unit #theta#?
- How do you use half angle formula to simplify #sin (3pi)/8#?
- How do you use the half angle formulas to simplify the expression #sqrt((1+cos4x)/2)#?
- How do you express #f(theta)=-6sin^2(theta)-3cos^2(theta)-2tan^4theta# in terms of non-exponential trigonometric functions?
- How do you simplify #f(theta)=sec(theta/4)-cos(theta/4-pi/2)# to trigonometric functions of a unit #theta#?
- How do you find the value of #sin -((5pi)/12)# using the double or half angle formula?
- How do you use the sum to product formulas to write the sum or difference #cos(phi+2pi)+cosphi# as a product?
- What is #cot(theta/2)# in terms of trigonometric functions of a unit #theta#?
- How would you solve: sin^2(pi/5)-cos^2(pi/5)? (show steps) Thanks
- How do you use the half angle formula to simplify #sin^2(pi/6)#?
- How do you use the half angle formulas to determine the exact values of sine, cosine, and tangent of the angle #pi/8#?
- What are the values of #x# that satisfy #cos^2x = 1/2#?
- How do you simplify using the half angle formula #sin(22^o 30')#?
- How to simplify 1-csc^2x?include identity used
- How do you find the exact values of cos(11pi/12) using the half angle formula?