Practicing Success
(A) $\frac{d}{d x} a^x=\frac{a^x}{\log _{e} a}$ (B) $\frac{d}{d x} e^{ax}=a e^{ax}$ (C) $\frac{d}{d x} x^x=x . x^{x-1}$ (D) $\frac{d}{d x} x^{a}=a x^{a-1}$ (E) $\frac{d}{d x} a^{a}=0$ Choose the correct answer from the options given below: |
(A), (B) Only (B), (D), (E) Only (D), (E) Only (A), (E) Only |
(B), (D), (E) Only |
(A) $\frac{d}{d x} a^x=\frac{a^x}{\log a}$ NOT $\frac{a^x}{\log a}$ (false) (B) $\frac{d}{d x} e^{ax}=a e^{ax}$ (true) (C) $\frac{d}{d x} x^x = x^{x(1+\log x)}$ and NOT $x.x^{x-1}$ false (D) $\frac{d}{d x} x^{a}=a x^{a-1}$ (true) (E) $\frac{d}{d x} a^{a}=0$ (true) |