Ответ:
cos² 42° + sin² 42° + sin² 30° =
= 1 + sin² 30° =
= 1 + (sin 30°)² =
= 1 + 0,5² =
= 1 + 0,25 =
= 1,25
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Ответ:
cos² 42° + sin² 42° + sin² 30° =
= 1 + sin² 30° =
= 1 + (sin 30°)² =
= 1 + 0,5² =
= 1 + 0,25 =
= 1,25