Ответ:
1. cos A = 1/2 (A)
cos B = √3/2 (B)
2. sin A = 8/10 = 4/5 (Г)
sin B =6/10=3/5 (B)
3. tg C=6/8=3/4 (A)
tg B= 8/6=4/3 (Б)
Объяснение:
4 . sin A =√ 1-3/5 =√10/5
cos A = √1- (3/5)^2 = 4/5
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Ответ:
1. cos A = 1/2 (A)
cos B = √3/2 (B)
2. sin A = 8/10 = 4/5 (Г)
sin B =6/10=3/5 (B)
3. tg C=6/8=3/4 (A)
tg B= 8/6=4/3 (Б)
Объяснение:
4 . sin A =√ 1-3/5 =√10/5
cos A = √1- (3/5)^2 = 4/5