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The curves y=x^3-3x^2-8x-4,y=3x^2+7x+4 t...

The curves `y=x^3-3x^2-8x-4,y=3x^2+7x+4` touch at the point (-1, 0). The equation of the common tangent is

A

`x+y+1=0`

B

`x+y-1=0`

C

`x-y+1=0`

D

`x-y-1=0`

Text Solution

Verified by Experts

The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1B (TANGENT AND NORMAL)
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