1/tan a + sin a/1+cos a

Question

1/tan a + sin a/1+cos a

Answer 1

=1/(sina/cosa)+sina/(1+cosa)=cosa/sina+sina/(1+cosa)=

      cosa(1+cosa) +sin²a       cosa+cos²a+sin²a        cosa+1

=___________________=_________________=__________=

                sina(1+cosa)              sina(1+cosa)        sina(1+cosa)

=1/sina