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Fq(x) = integrate sqrt(4 + z ^ 6) dz from 0 to x ^ s * then

Fq(x) = integrate sqrt(4 + z ^ 6) dz from 0 to x ^ s * then-example-1
User Schizodactyl
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3.1k points

1 Answer

13 votes
13 votes

We are given the definite integral:


q(x)=\int_0^(x^8)√(4+z^6)dz

We need to find q'(x).

We can use the fundamental theorem of calculus to solve this. Given a function F(x):


F(x)=\int_a^bf(x)dx

Then:


F^(\prime)(x)=f(x)

Thus, we can find the antiderivative q'(x), using the fundamental theorem of calculus and the chain rule:


(d)/(dx)(\int_0^(x^8)√(4+z^6)dz)=√(4+(x^8)^6)\cdot(d)/(dx)(x^8)=\sqrt{4+x^(48)}\cdot8x^7

The answer is:


q^(\prime)(x)=8x^7\sqrt{4+x^(48)}

User Irfan Anwar
by
2.4k points
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