61.3−(−79.104)61.3-\left(-79.104\right)61.3−(−79.104)
−27:−3-27:-3−27:−3
(csc2x−1)=cot(x)csc(x)\left(csc^2x-1\right)=cot\left(x\right)csc\left(x\right)(csc2x−1)=cot(x)csc(x)
353a2b423\sqrt[2]{5^3a^2b^4}3253a2b4
2(x2+8x)2\left(x^2+8x\right)2(x2+8x)
(21y3−7y3+12y2)\left(21y^3-7y^3+12y^2\right)(21y3−7y3+12y2)
(p−q)2+(p−q)2\left(p-q\right)^2+\left(p-q\right)^2(p−q)2+(p−q)2
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