Ответ:
1-cos²a = sin a sin(180°–a)
cos²a+sin²a -cos²a = sin a * sin a
sin²a = sin²a
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
1-cos²a = sin a sin(180°–a)
cos²a+sin²a -cos²a = sin a * sin a
sin²a = sin²a