How do you find the derivative of #y = cos(a^3 + x^3)# using the chain rule?
1 Answer
Jan 22, 2016
# dy/dx = -3x^2 sin(a^3 + x^3 ) #
Explanation:
using 'chain rule'
#dy/dx = - sin(a^3 + x^3) .d/dx (a^3 + x^3 )#
# = - sin( a^3 + x^3 ). (3x^2 )#
# rArr dy/dx = - 3x^2 sin(a^3 +x^3 )#
