1.

Find the derivative of tan(x)/x​

Answer»

ANSWER:

Step-by-step EXPLANATION:

They are as follows: (SINX)′=cosx,(cosx)′=−sinx. Using the quotient RULE it is easy to obtain an expression for the derivative of tangent: (tanx)′=(SINXCOSX)′=(sinx)′cosx−sinx(cosx)′cos2x=cosx⋅cosx−sinx⋅(−sinx)cos2x=cos2x+sin2xcos2



Discussion

No Comment Found

Related InterviewSolutions