Maths-

General

Easy

Question

# If the tangent at ‘t’ on the curve y = , x = meets the curve again at and is normal to the curve at that point, then value of t must be -

- ±
- ±
- ±
- None of these

Hint:

**Slope of tangent = **

## The correct answer is: ±

### Slope of tangent =

Given : y = and x =

=

Equation tangent at point 't'

y -y1 = m(x -x1)

Equation of normal

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