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can someone solve this for me without changing the limits of integration?
 2 years ago
 2 years ago
can someone solve this for me without changing the limits of integration?
 2 years ago
 2 years ago

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Eherre1989Best ResponseYou've already chosen the best response.0
\[\int\limits_{1}^{3}x \sqrt{1(x2)^2}dx\]
 2 years ago

Eherre1989Best ResponseYou've already chosen the best response.0
it has to be a trig substitution i just get stuck when i have to integrate the sins
 2 years ago

Mr.MathBest ResponseYou've already chosen the best response.1
Write what you have so far.
 2 years ago

Eherre1989Best ResponseYou've already chosen the best response.0
\[\int\limits_{}^{}(\sin \theta\sin^3\theta2\sin^2\theta+2)d \theta\]
 2 years ago

Eherre1989Best ResponseYou've already chosen the best response.0
i need that integrated i cant seem to figure out the middle two
 2 years ago

Eherre1989Best ResponseYou've already chosen the best response.0
i feel as if i should do by parts
 2 years ago

Mr.MathBest ResponseYou've already chosen the best response.1
Break it down into four integrals. I'm sure you know how to integrate \(\sin\theta\) and \(2\).
 2 years ago

Mr.MathBest ResponseYou've already chosen the best response.1
For \(\sin^3\theta\), write \(\sin^3\theta=\sin\theta\cos^2\theta\sin\theta\), and then the integral of \(\sin\theta\) is easy. Substitute \(u=\cos\theta\) for the integration of \(\cos^2\theta\sin\theta\).
 2 years ago

Eherre1989Best ResponseYou've already chosen the best response.0
i dont remember any trig identities
 2 years ago

Mr.MathBest ResponseYou've already chosen the best response.1
\(\sin^2\theta=\frac{1\cos(2\theta)}{2}\).
 2 years ago

Mr.MathBest ResponseYou've already chosen the best response.1
Sorry it should be \(2\sin^2\theta=\cos(2\theta)1\).
 2 years ago
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