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- tan^2x + sec^2x = 1 proving trig equations
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16 votes
- tan^2x + sec^2x = 1 proving trig equations

User Matteo Melani
by
6.9k points

2 Answers

10 votes

Answer:

see explanation

Explanation:

Using the trigonometric identity

sec²x = 1 + tan²x

Consider the left side

- tan²x + sec²x

= - tan²x + 1 + tan²x ← collect like terms

= 1

= right side, thus proven

User Simhor
by
7.4k points
5 votes

Answer:

Is C

Explanation:

User Jellyfishhuang
by
7.1k points
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