Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

సరళీకరించండి : \(\rm \frac{tan A}{\left(1 + tan^2A\right)^2} + \frac{cot A}{\left(1 + cot^2A\right)^2}\)

1
sin A cos A
2
2 sin A cos A
3
sin A - cos A
4
(sin A + cos A)2

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