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skelet666 [1.2K]
2 years ago
13

Find the derivative of arctan(10x)

Mathematics
2 answers:
IgorC [24]2 years ago
8 0

Answer:

dy/dx=10/(1+100x^2)

Step-by-step explanation:

Let y=arctan(10x).

Then tan(y)=10x.

Differentiate both sides:

sec^2(y)×dy/dx=10

Divide both sides by sec^2(y):

dy/dx=10/sec^2(y)

By a Pythagorean identity:

dy/dx=10/(1+tan^2(y))

Recall tan(y)=10x:

dy/dx=10/(1+(10x)^2)

dy/dx=10/(1+100x^2)

sergij07 [2.7K]2 years ago
4 0

Answer:

\frac{10}{100x {}^{2} + 1 }

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