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If the tangent to the curve y = e ^( kx)...

If the tangent to the curve `y = e ^( kx) at M (0,1)` meet the x-axis at N(a,0) where `a in [-2,-1]`then k belong to

A

`[ (-1)/(2) , 0]`

B

`[-1 , (-1)/(2)]`

C

`[0,1]`

D

`[ (1)/(2),1]`

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The correct Answer is:
D
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