Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

இன் மதிப்பு 2 - \(\frac{{{{\sin }^2}a}}{{1 - \cos a}}\) + \(\frac{{1 - \cos a}}{{\sin a}}\) - \(\frac{{\sin a}}{{1 + \cos a}}\) என்பது

1

1 - sinα

2

1 + sinα

3

1 + cos α

4

1 - cos α

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