How do you find the derivative of #f(t)=-t^3#? Calculus Basic Differentiation Rules Power Rule 1 Answer David L. May 1, 2017 #fprime(t)=-3t^2# Explanation: Use the power rule, #fprime(t)=rx^(r-1)# #fprime(t)=-3t^(3-1)# #fprime(t)=-3t^2# Answer link Related questions How do you find the derivative of a polynomial? How do you find the derivative of #y =1/sqrt(x)#? How do you find the derivative of #y =4/sqrt(x)#? How do you find the derivative of #y =sqrt(2x)#? How do you find the derivative of #y =sqrt(3x)#? How do you find the derivative of #y =sqrt(x)#? How do you find the derivative of #y =sqrt(x)# using the definition of derivative? How do you find the derivative of #y =sqrt(3x+1)#? How do you find the derivative of #y =sqrt(9-x)#? How do you find the derivative of #y =sqrt(x-1)#? See all questions in Power Rule Impact of this question 1428 views around the world You can reuse this answer Creative Commons License