(25x+32y)2\left(\frac{2}{5}x+\frac{3}{2}y\right)^2(52x+23y)2
x−12; x=−5x-12;\:x=-5x−12;x=−5
2sinx+cscx=02sinx+cscx=02sinx+cscx=0
−tan2(x)=(1+sec(x))⋅(1−sec(x))-\tan^2\left(x\right)=\left(1+\sec\left(x\right)\right)\cdot\left(1-\sec\left(x\right)\right)−tan2(x)=(1+sec(x))⋅(1−sec(x))
(−5x2)⋅(4x4)+2x3⋅(−5x)⋅(x3)\left(-5x^2\right)\cdot\left(4x^4\right)+2x^3\cdot\left(-5x\right)\cdot\left(x^3\right)(−5x2)⋅(4x4)+2x3⋅(−5x)⋅(x3)
6x4(6+y3)3\:6x^4\left(6+y^3\right)^36x4(6+y3)3
1x−4+1x+4=16x2−16\frac{1}{x-4}+\frac{1}{x+4}=\frac{16}{x^2-16}x−41+x+41=x2−1616
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