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What is the answer to 54 & 55?

What is the answer to 54 & 55?-example-1
User Tijkijiki
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(d)/(dx) [x^(a)] = ax^(a-1) \\ (d)/(dx) [x^(-4)] = -4x^(-5) \\ (d)/(dx) [x^(1/5)] = 1/5 \cdot x^(-4/5)
User Bikash Gyawali
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