a−3a−3\frac{a-3}{a-3}a−3a−3
128 + 442 + 330 + 510128\:+\:442\:+\:330\:+\:510128+442+330+510
8c6⋅4c−2k58c^6\cdot4c^{-2}k^58c6⋅4c−2k5
2sin2z=3cosz2\sin^2z=3\cos z2sin2z=3cosz
z8+24+1z^8+24+1z8+24+1
21(−3)−7(−12)+(3−2(−17))21\left(-3\right)-7\left(-12\right)+\left(3-2\left(-17\right)\right)21(−3)−7(−12)+(3−2(−17))
cos2(x)−sin(x)=0\cos^2\left(x\right)-\sin\left(x\right)=0cos2(x)−sin(x)=0
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