Simplify the expression
cot^2x - cot^2x cos^2x
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cot^2x - cot^2x cos^2x
= cot^2x - {(cot^2x)(cos^2x)}
= cot^2x { 1 - cos^2x }
= cot^2x { sin^2x }
= (cos^2x/sin^2x) { sin^2x }
= cos^2x
Karima:
how did you get the 3rd step?
sin^2x + cos^2x = 1
if u find it helpful then click on thank you..
thank you..i appreciate that
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