hiralpatel121
I need help with the problem attached.



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hiralpatel121
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mandonut
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take the integral from 0 to 90

rainaby
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ya take the integral!

hiralpatel121
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I don't know how to do that.

rainaby
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hahaa

Goten77
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\[\int\limits_{0}^{\pi/2}x+ \cos(x)\]

rainaby
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ya this is the way!

Goten77
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then you have \[x ^{2}/2 + \sin(x) + c\]

rainaby
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now put the limits!

mandonut
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you dont need c

Goten77
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well ye u dont but i put it anyways just so it looks smart

rainaby
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got the answer?

hiralpatel121
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I still don't realize what the next step will be after.

rainaby
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what? just put in the values!

hiralpatel121
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I suck at trigs!

rainaby
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its easy want to learn it this is just the basics!

Goten77
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i feel like i did something wrong...

hiralpatel121
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I have no idea..

rainaby
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no its wrong

Goten77
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oh i found my error now

rainaby
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divide it by 4

rainaby
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not 2

Goten77
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\[((\pi/2)^{2}/2) + 1\]

rainaby
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ya thats right!

hiralpatel121
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So that's what I put down for the answer?

Goten77
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it reduces to \[(\pi ^{2}/4) + 1\]

hiralpatel121
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Okay, thanks. I need help with just one more problem.