Question

One plus cotsquare theeta into one minus cos theeeta into one plus cos theeta

Answer 1

Answer:

The answer should be ($sin^{2}Ф$)

Step-by-step explanation:

=( 1+ cos^2Ф)(1-cos^2Ф)(1+cos^Ф)

It is in the form (a+b) (a-b)

=( 1+ cos^2Ф)( 1- cos^2Ф)

Now It  is also in the form (a+b) (a-b) = $( a^{2} - b^{2} )$

= [ 1- (cos^2Ф)^2]

= $( sin^{2} Ф)$

HOPE THIS HELPES YOU O_O