Question

please answer me ..................​

Answer 1

Answer:

=   1 + cos x /sin x  +  sin x /  1 + cos x

=   ( 1 + cos x ) 2 + sin 2 x  / sin x ( 1 + cos x )

=    1 + 2 cos x + cos 2 x + sin 2 x /  sin x ( 1 + cos x )

=    2 + 2 cos x /  sin x ( 1+ cos x )

=      2 ( 1 + cos x ) /  sin x ( 1 + cos x )

= 2 /  sin x

= 2 cot x

=rhs