Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
\({(1 + tan^2 A)}+(1 + \frac{1}{tan^ 2A})\) is equal to?
1
1/(sin2A - sin4A).
2
1/sin2A - sec4A.
3
1/sin2A - tan4A.
4
More than one of the above
5
None of the above