Which equation can be used to prove 1 + tan2(x) = sec2(x)?

Question

asked Dec 3, 2021 104k views

2 Answers

Edwin Mokami · Answer 1 · 2021-12-08T05:45:02+0000

Answer:

fourth option

Explanation:

Using the trigonometric identity

cos²x + sin²x = 1

Divide all terms by cos²x

(cos^2x)/(cos^2x) +
(sin^2x)/(cos^2x) =
(1)/(cos^2x) which gives

1 + tan²x = sec²x