Question 12
If cos sinA ,sin cos α − α = α α and A + A′ = I, then the value of α is (A) 6 / π (B) 3 / π (C) π (D) 3 / π
SOLUTION
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If cos sinA ,sin cos α − α = α α and A + A′ = I, then the value of α is (A) 6 / π (B) 3 / π (C) π (D) 3 / π