sin(п/2-а)*cos(п-a)/tg(3п/2+a)=-cosa*cosa/-ctga=cosasina=1/2sin2a
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
sin(п/2-а)*cos(п-a)/tg(3п/2+a)=-cosa*cosa/-ctga=cosasina=1/2sin2a