2(−6+3−13+7)+3(15−6+5−4)2\left(-6+3-13+7\right)+3\left(15-6+5-4\right)2(−6+3−13+7)+3(15−6+5−4)
limx→∞cos2(x)\lim_{x\to\infty}\cos^2\left(x\right)x→∞limcos2(x)
3x2yz+6xz−9yz3x^2yz+6xz-9yz3x2yz+6xz−9yz
0,62⋅10,62\cdot10,62⋅1
2x−1;x=−12x-1;x=-12x−1;x=−1
171^717
m=cos6xcos2x−cos9xcos3xm=\frac{cos6x}{cos2x}-\frac{cos9x}{cos3x}m=cos2xcos6x−cos3xcos9x
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