CBSE Class 10 Answered
sin A + cos B A 30° B is an acute angle find the value of B
Asked by rusuishika | 24 Dec, 2020, 08:44: PM
Expert Answer
sin A + cos B = 1
As A = 30°
Sin 30° = 1/2
+ cos B = 1
Cos B = 1-
Cos B =
This will happen when B = 60°
Answered by | 26 Dec, 2020, 12:30: AM
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