Question

Pls give step by step explanation ​

Answer 1

Option C is correct...

Answer 2

Answer:

Step-by-step explanation:

We have, sec2= 1+ tan2

Also, sin2 + cos2 =1

So, 1- cos2 = sin2

Using this in the question,

( 1+ tan2)(1-cos2)=

=Sec2 × sin2

= (1/cos2 ) sin2

= sin2/cos2

=tan2

Hope it helps:)