1)1+tg (П/2-а)×ctg (2П-а)×сos (3П/2+а)×tg (2П+а)=2sin^2a/2
Доказать баланс
Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Copyright © 2024 SCHOLAR.TIPS - All rights reserved.