Calculus: Second Differential Mixed

## Difficult

Q1) Find the second derivative of $3 x ^{4}$
Q1) Differentiate $3 x ^{3} + \cos 2 x + 2 \ln 2 x$
Q1) Find the second derivative of $15 x ^{5} + \sin 50 x + 5 \ln 5 x$
Q2) Find the second derivative of $4 x ^{5}$
Q2) Differentiate $11x ^{4} + \sin 30 x + 5 \ln 5 x$
Q2) Find the second derivative of $3 x ^{6} + \sin 2 x + 2 \ln 2 x$
Q3) Find the second derivative of $8 x ^{3}$
Q3) Differentiate $7 x ^{4} + \cos 12 x + 4 \ln 4 x$
Q3) Find the second derivative of $11x ^{5} + \cos 28 x + 4 \ln 4 x$
Q4) Find the second derivative of $2 x ^{3}$
Q4) Differentiate $13 x ^{6} + \sin 36 x + 4 \ln 4 x$
Q4) Find the second derivative of $15 x ^{4} + \sin 56 x + 7 \ln 7 x$
Q5) Find the second derivative of $8 x ^{-4}$
Q5) Differentiate $8 x ^{2} + \cos 16 x + 4 \ln 4 x$
Q5) Find the second derivative of $6 x ^{3} + \cos 5 x + 5 \ln 5 x$