Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Trigonometry Trigonometric Functions
Find the value of (cos A + 1) if it is given that cos 2A = 0.62
1
1.01, 0.9
2
1.9, 0.1
3
9.1, 0.1
4
More than one of the above
5
None of the above