Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Trigonometry
Let A = (cos 2θ + 2 cos θ). Then,
1
A > \(-\frac{3}{2}\)
2
A ≤ \(\frac{3}{2}\)
3
A ≥ \(-\frac{3}{2}\)
4
More than one of the above
5
None of the above