Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
QUESTION
How do you simplify ## sec^2x (1-sin^2x)##?
1
From trig identities, ##sin^2x+cos^2x=1## ##therefore 1-sin^2x=cos^2x##
##therefore sec^2x(1-sin^2x)=sec^2x*cos^2x## ##=1/(cos^2x)*cos^2x## ##=1##
