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4 years ago

Verify the identity sec^2(x)tan^2(x)+sec^2(x)=sec^4(x)

Mathematics

1 answer:

Natalija [7]4 years ago

6 0

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

tan²x + 1 = sec²x ⇒ tan²x = sec²x - 1

Consider the left side

sec²x × tan²x + sec²x

= sec²x(sec²x - 1) + sec²x ← distribute and simplify

= $sec^{4}$ x - sec²x + sec²x

= $sec^{4}$ x = right side ⇒ verified

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3 years ago

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