Ответ:
Объяснение:
1. 2sin 60 * tg60 = 2* √3/2 *√3 = √3*√3 = 3 в)3
2. tg^2 45 + cos 60 = (1/√3)^2 + 1/2 = 1/3 + 1/2 = 5/6
3. tg30 * cos30 = 1/√3 * √3/2 = 1/2 = 0,5 г) 0,5
4 √2 (sin 45 + cos 45) = √2 (√2/2 + √2/2) = √2*√2 = 2 б)√2
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
Объяснение:
1. 2sin 60 * tg60 = 2* √3/2 *√3 = √3*√3 = 3 в)3
2. tg^2 45 + cos 60 = (1/√3)^2 + 1/2 = 1/3 + 1/2 = 5/6
3. tg30 * cos30 = 1/√3 * √3/2 = 1/2 = 0,5 г) 0,5
4 √2 (sin 45 + cos 45) = √2 (√2/2 + √2/2) = √2*√2 = 2 б)√2