2 years ago

Verify: sec^2x+tan^2x=2sec^2x-1

Mathematics

1 answer:

Jlenok [28]2 years ago

8 0

Answer:

see explanation

Step-by-step explanation:

Using the identity

tan²x = sec²x - 1

Consider left side

sec²x + tan²x

= sec²x + sec²x - 1

= 2sec²x - 1

= right side , thus verified

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