Half-Angle Identities - Page 24
Questions
- How do you solve #\sin^2 \theta = 2 \sin^2 \frac{\theta}{2} # over the interval #[0,2pi]#?
- How do you find the exact value for #sin105# using the half‐angle identity?
- How do you find the exact value for #cos165# using the half‐angle identity?
- How do you find the exact value of #cos15#using the half-angle identity?
- How do you use a half-angle formula to find #cos (pi/8)#?
- How do you use half angle formulas to find the exact value for cos 15 without using a calculator?
- How do you use half angle formula to find cos 22.5?
- How do you use half angle formula to find sin 15?
- How do you use half angle formula to find sin 75?
- How do you use half angle formula to find tan 15?
- How do you use half angle formula to find #tan (5pi)/12#?
- How do you find sin (x/2), given #cos x = -5/8#, with #pi/2 < x <pi#?
- What is the proof of the half-angle formula?
- If #cscx=2#, 90°<x<180° how do you find sin(x/2), cos(x/2), tan(x/2)?