Question

Simplify the expression: 1/1+cot^2x

Answer 1

Answer:C. Sin^2x

Explanation:

Answer 2

`(1)/(1+ ctg^(2)x )`=
`(1)/(1+ (cos ^(2) x)/(sin ^(2)x) ) = (1)/( (sin ^(2)x+cos ^(2) x )/( sin^(2) x) )= (sin ^(2) x)/(sin ^(2)x+cos ^(2) x ) =sin ^(2)x`