∫7(5+4x2)dx\int\frac{7}{\sqrt{\left(5+4x^2\right)}}dx∫(5+4x2)7dx
xdydx+3y=xsinxx\frac{dy}{dx}+3y=xsinxxdxdy+3y=xsinx
limx→0(hh)\lim_{x\to0}\left(\frac{\sqrt{h}}{h}\right)x→0lim(hh)
2[(4−2)+3(3+2(2))]−42\left[\left(4-2\right)+3\left(3+2\left(2\right)\right)\right]-42[(4−2)+3(3+2(2))]−4
7csc2(x)−6=87\csc^2\left(x\right)-6=87csc2(x)−6=8
1−2cos2x+cos4xsin4x\frac{1-2\cos^2x+\cos^4x}{\sin^4x}sin4x1−2cos2x+cos4x
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