Question

please help me in 2, 3​

Answer 1

Answer:

(2). (c) π/6

(3). (b) 1/4

Answer 2

Answer:

2. (a)

3. (d)

formula used in que 2:

${ \tan }^{ - 1}x \: + {tan}^{ - 1}y = {tan}^{ - 1} (\frac{x + y}{1 - xy})$