Question

tan 25. is equal to 1 + tan A (1) sin2A (3) tan2A (2) COS2A (4) COLZA

JEE/Engineering Exams

Maths

Solution

4.0 (1 ratings)

( frac{1-tan ^{2} 4}{1+tan ^{2} 4}=cos 2 pi ) ( 2 cos (2 cdot pi / 4-4) ) ( 2 cos left(90^{circ}-24right) ) ( 2 cdot sin 2 A )