defence exam Indian Coast Guard Assistant Commandant (GD/CPL) 2025 Test Series Mathematics Trigonometry Trigonometric Identities
(1 – sin A + cos A) 2 is equal to
1
2(1 – cos A)(1 + sin A)
2
2(1 – sin A)(1 + cos A)
3
2(1 – cos A)(1 – sin A)
4
None of the above