# 22) The normal at the point (1,1) on the curve   is (A) x + y = 0(B) x – y = 0(C) x + y +1 = 0(D) x – y = 1

Given the equation of the curve

We know that the slope of the tangent at a point on the given curve is given by

We know that

At point (1,1)

Now, the equation of normal with point (1,1) and slope = 1

Hence, the correct answer is (B)

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