Q. 14.4( 43 Votes )

Find the slope of the tangent to the curve y = 3x4 – 4x at x = 4.

Answer :

The given curve y = 3x4 – 4x

Then, the slope of the tangent to the given curve at x = 4 is given by,



= 12(64) – 4


= 764


Therefore, the slop of the tangent is 764.


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