Logarithmic Shortcuts / e^x

Question 1

d/dx [e^x]

Answer 1

e^x

Question 2

d/dx [a^x]

Answer 2

a^x * ln(a)

Question 3

d/dx [log_b(x)]

Answer 3

1/(x*ln(b))

Question 4

d/dx [ln(x)]

Answer 4

1/x