Question

sin(π/3 -α)+ соs(π/6 -α)

Упростить 

Answer 1

= sin π/3 * cosα - sinα * cos π/3+ cos π/6 * cosα + sinα * sin π/6 = √3/2 *cosα - sinα/2 + √3/2 *cosα + sinα/2= √3 cosα