Log2 (Sin п/4) -log2 (cos п/4)

Question

Log2 (Sin п/4) -log2 (cos п/4)

Comments

помогите решить это 

Answer 1

Log2(sin(п/4)/cos(п/4))=log2(tg(п/4))=log2(1)=0

Answer 2

Log2(sin p/4)-log2(cosp/4)=log2(sin p/4 / cos p/4)=log2(tg p/4)=log2 1=0