Докажите тождество
а) (sinB +sinA )(sinA - sinB ) – (cosA +cosB )( cosB - cosA ) = 0
б) ctq^2A - cos^2A = ctq^2A cos^2A
Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Answers & Comments


Copyright © 2024 SCHOLAR.TIPS - All rights reserved.