Half-Angle Identities - Page 3
Questions
- How do you use the half angle formulas to simplify the expression #-sqrt((1-cos8x)/(1+cos8x))#?
- How do you use the half-angle identity to find the exact value of cos(-pi/12)?
- How do you find the exact value for #sin105# using the half‐angle identity?
- How do you solve #\sin^2 \theta = 2 \sin^2 \frac{\theta}{2} # over the interval #[0,2pi]#?
- How do you solve 2/3 sin^2x-cosx=1 on the interval 90 to 180 degrees?
- How do you use half angle identities to solve equations?
- How do you use the half angle identity to find cos 15?
- How do you simplify #((1-costheta)(1 + costheta))/((1-sintheta)(1+sintheta))#?
- Find the exact value of cos 210 using the half angle formula?
- How do you use half angle formula to find #sin 22.5#?
- How do you solve #cos (x/2 )- cosx=0# if #0°<=x<360#?
- How do you use half angle formula to find #sin 165#?
- How do you use half angle formula to find #sin ((11pi)/12)#?
- How do you use half angle formula to find #sin 67.5#?
- How do you use the half angle formula to find #sin (pi/12)#?
- How do you use the half angle formula to simplify #cos^2(pi/3)#?
- How do you use the half angle formula to simplify #cos^2(pi/12)#?
- How do you use a half-angle formula to simplify the following expression #(sin(4x))/(1+cos(4x))#?
- How would you use the half-angle formula to find the exact values of #tan 195#degrees?
- If #cos^2x = 3/4#, then what is the value of #cos(2x)#?