engineering recuitment NIMCET Previous Year Papers Mock Test Mathematics Trigonometry Trigonometric Functions
The expression \(\rm \dfrac{\tan A}{1-\cot A} + \dfrac{\cot A}{1-\tan A}\) can be written as:
1
sin A cos A + 1
2
sec A csc A + 1
3
tan A + cot A
4
sec A + csc A