Integral batas dari 0 sampai phi per 2 untuk 2x dx adalah?
Takamori37
![\displaystyle \int_0^{^{\pi}/_{2}} 2x$ $dx=x^2]_0^{^{\pi}/_{2}} \\ \\ \displaystyle \left(\frac{\pi}{2}\right)^2-(0)^2=\frac{\pi^2}{4}](https://tex.z-dn.net/?f=%5Cdisplaystyle+%5Cint_0%5E%7B%5E%7B%5Cpi%7D%2F_%7B2%7D%7D+2x%24+%24dx%3Dx%5E2%5D_0%5E%7B%5E%7B%5Cpi%7D%2F_%7B2%7D%7D+%5C%5C++%5C%5C+%5Cdisplaystyle+%5Cleft%28%5Cfrac%7B%5Cpi%7D%7B2%7D%5Cright%29%5E2-%280%29%5E2%3D%5Cfrac%7B%5Cpi%5E2%7D%7B4%7D "\displaystyle \int_0^{^{\pi}/_{2}} 2x$ $dx=x^2]_0^{^{\pi}/_{2}} \\ \\ \displaystyle \left(\frac{\pi}{2}\right)^2-(0)^2=\frac{\pi^2}{4}")
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izakkinagais
jadi phi nya tetap? tidak d rubah ke 90 derajat?
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