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Delvig [45]
4 years ago
14

Why is the derivative equals to 0?

Mathematics
1 answer:
Lisa [10]4 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

• tan²x + 1 = sec²x

⇒ tan²x - sec²x = - 1

Thus the derivative reduces to

\frac{d}{dx} ( - 1 ) = 0

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