Urgent Math quiz question?

Question

1+csc^2 x = .............. ?


A) 1/cot^2x
B) sin^2x+cos^2x+csc^2x
C)cot^2x
D) csc^2x+ sin^2x-cos^2x
E) csc^2-sec^2x
F) cot^2x-1

Answer 1

1 + Csc^2x

From pythagorean identities

Sin^2x + Cos^2x = 1

1 + Csc^2x = Sin^2x + Cos^2x + Csc^2x

Option B is correct answer.