Question

what is the answer of this question ​

Answer 1

Answer:

Step-by-step explanation:

To prove: 1/1+sin2@ + 1/1+cos2@ +1/1+sec2@ +1/1+cosec2@ =2

Lhs

1/1+sin2@ + 1/1+cos2@ + 1/cos2@+1/cos2@ + 1+sin2@+1/sin2@

1/1+sin2@ +1/1+cos2@ +cos2@/1+cos2@ +sin2@/1+sin2@

[1+sin2@]/1+sin2@ + [1+cos2@]/1+cos2@

1+1

2

Hence proved