4sin2x+9cosx−6=04sin^2x+9cosx-6=04sin2x+9cosx−6=0
−2.7⋅2-2.7\cdot2−2.7⋅2
(2x+3y)⋅dx +(−4x)⋅dy=0\left(2x+3y\right)\cdot dx\:+\left(-4x\right)\cdot dy=0(2x+3y)⋅dx+(−4x)⋅dy=0
limx→2(x−2cos(πx)x2−4)\lim_{x\to2}\left(\frac{x-2\cos\left(\pi x\right)}{x^2-4}\right)x→2lim(x2−4x−2cos(πx))
∫tanπ4 tan63x sec4 3x 3dx\int tan\frac{\pi}{4}\:tan^63x\:sec^4\:3x\:3dx∫tan4πtan63xsec43x3dx
(11x+9y)2\left(11x+9y\right)^2(11x+9y)2
3x25+18=933x^{\frac{2}{5}}+18=933x52+18=93
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