CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard

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Question 12 - CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard - Solutions of Sample Papers for Class 10 Boards

Last updated at August 14, 2026 by

Sin A + Cos B = 1, A = 30° and B is an acute angle, then find the value of B.

sin A + cos B = 1, A = 30 and B is acute angle, then find value of B

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Question 12 sin A + cos B = 1, A = 30° and B is an acute angle, then find the value of B.Given sin A + cos B = 1 Putting A = 30° sin 30° + cos B = 1 𝟏/𝟐 + cos B = 1 cos B = 1 − 1/2 cos B = 1/2 cos B = cos 60° Thus, B = 60°

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