ТРИГОНОМЕТРИЯ
Упростить выражения:
а)[tex]4cos \frac{ \alpha }{4} *cos \frac{2 \pi + \alpha }{4} *cos \frac{2 \pi + \alpha }{2} [/tex]
б)[tex] \frac{1}{1-tg \alpha } - \frac{1}{1+tg \alpha } [/tex]
Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Answers & Comments


Copyright © 2025 SCHOLAR.TIPS - All rights reserved.