Question

sin 22.5 is equal to...​

Answer 1

answer:

√(2-√2)/2

Step-by-step explanation:

The exact value of sin 22.5° using the half-angle formula is √(2 - √2) / 2 or 0.38. Let us proceed step by step to find the exact values of sin 22.5° using the half-angle formula. If θ = 22.5° then 2θ is 45°.