Question

answer to get points and brainlist

Answer 1

= sin^2 7 + sec^2 23 + sin^2 83 - cot^2 67
= sin^2 7 + sec^2 23 + cos^2 7 - tan^2 23
= sin^2 7 + cos^2 7 + sec^2 23 - tan^2 23
= 1 + 1
= 2

Answer 2

sin sq 7 = cos sq 83
sec sq 23 = cosec sq 67

cos sq 83 + sin sq 83 + cosec sq 67 - cot sq 67
= 1 + 1
= 2