Answer:

(1-cos^2 x)(1+tan^2 x)=tan^2 x is an identity

Step-by-step explanation:

use pictomath

Answer: 80m

A. (2(4x+7x))=P

B. 2(4(3)+7(3))=2(12+21)=2(33)=66

2 is the correct answer

2(3Z-4)