defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Trigonometry Inverse Trigonometric Functions

The maximum value of \(4\sin^2 x+ 3\cos^2 x + \sin \frac x 2 + \cos \frac x 2\) is

1
4
2
3 + √2
3
9
4
4 + √2
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