The quotient tells us how to find derivative of the quotient of two functions.
=(d/dx(cos(x)).x3-cos(x).d/dx(x3))/(x3)2 quotient rule
=(-sin(x).x3-cos(x).3×2)/x6 differentiate cos(x) and x3
=-(xsin(x)+3cos(x))/x4 cancel common factors
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|I was a teacher in Srilanka from 1992 to 2006.I took tuition from 1990 to 1991 in India.I do general work in Canada but I help to do homework to my daughters.I finished my teachers training college diploma in Srilanka.|