Question

\int_{0}^{\pi/2} 7 \cos^{2}(\theta) \ d\theta

          \int_{0}^{\pi/2} 7 \cos^{2}(\theta) \ d\theta
        
∫0^π/2 7 cos^2(θ)  dθ

Added by Patrick J.

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Calculus: Early Transcendentals
Calculus: Early Transcendentals
James Stewart 8th Edition
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int_0^((pi )/(2)) 7cos^(2)( heta )d heta
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Transcript

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00:01 All right, here we have this ruler that shows us a ruler between 19 and 20 centimeters.
00:08 So if i try to break this down and i have here is 19 and here's 20, we have that it breaks right there in the middle.
00:16 And then we have these other dots in here.
00:19 Right.
00:19 And then we have 20, 1, 2, 3, 4.
00:22 And then it seems to be like shaded, shaded right here.
00:28 Everything beneath that is shaded.
00:31 So what we have to do is break down this, right? this is between 19 and 20.
00:36 And how many do we have here? one, two, three, four, five.
00:39 So if we look at this, this middle part right here, that middle part is going to be 19 .5...
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