Q. 193.8( 4 Votes )

# Prove the tangent

Answer :

We know that if the slope of two tangent of a curve are satisfies a relation m1m2 = -1, then tangents are at right angles m1 at (2, 0) = -1

m2 at (3, 0) = 1

m1m2 = (-1)(1) = -1

So, we can say that tangent at (2, 0) and (3, 0) are at right angles.

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