# 3 Verify the identity. 2 CSC x sec x-sec x+ Csc xcot x 2 xsec x cos xsin x= Which of the following four statements establishes the identity? O A. CSC (sin² x+1) cos x COS X 2 = cos x+ = sec x + csc x cot x 2 2 cos x sin x sin x OB. 1 2 sin x+1 2 x+1) X cos x COS X CSC Xsec X- = cos x+: =sec x + csc x cot x 2 cos x sin x 2 cos x sin x 2 sin x X 2 2 2 2 sin CSC x sec x cos xsin x = X+ COS X 2 1 COS X = sec x+ csc x cot x COS X 2 cos x sin X sin x OD. CSC csc 2 x sec x= 2 = (1 + cot 2x) secx= secx+ cot2x sec 1+ cot x secx= secx+ cot x secx= secx+ COS X 1 COS X = secx+ sec x+ csc x cot x 2 COS X Z sin x sin x ㅁㅁ F3 $ 4 000 000 F4 MacBook Air F5 F6 % 25 6 & 29 7 F7 E R T Y U כ D F G H 8* ►11 F8 F9 9 O 0 Time Re J K L F15