1.

The equation of normal to the curve y = `log_(e)` x at the point P( 1, 0) is ..... .A. 2x+y=2B. x-2y=1C. x-y=1D. x+y=1

Answer» Correct Answer - D
We have, y`=log_(e)xrArr(dy)/(dx)=1/x`
`therefore` Slope of normal at P(1,0)
`=-1/((dy//dx)_((1,0)))`
`=(-1)/1`=-1
`therefore` Equation of normal at P(1,0)
`rArry-0=(-1)(x-1)`
`rArry=-x+1`
`rArrx+y=1`


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