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x+y=7andax^(2)+2hxy+ay^(2)=0,(ane0), are...

`x+y=7andax^(2)+2hxy+ay^(2)=0,(ane0)`, are three real distinct lines forming a triangle is

A

isosceles

B

scalene

C

equilateral

D

right angled triangle

Text Solution

Verified by Experts

The correct Answer is:
A
`ax^(2) +2hxy +ay^(2) =0` is symmetrical about `y =x`
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