RRB JE 2nd June 2019 Shift-1

Question 25

Simplify $$\frac{1+cos\theta}{sin\theta}$$

Solution

$$\frac{1+\cos\theta\ }{\sin\theta\ }$$

$$=\frac{1\ }{\sin\theta\ }+\frac{\cos\theta\ }{\sin\theta\ }.$$

$$=\operatorname{cosec}\theta\ +\cot\theta\ .$$

B is correct choice.

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