Practice problem
If f(x)=xaf(x)=x^af(x)=xa and a∈Ra\in\mathbb{R}a∈R then find the derivative function f′(x)f'(x)f′(x).
ax1aax^{\frac1a}axa1
axa−1ax^{a-1}axa−1
axaxax
axa−1−xa−1ax^{a-1}-x^{a-1}axa−1−xa−1
Type a concept, like “slope” or “photosynthesis”.
