VITEEE MATHS Q6

x^{2}-y^{2}-4x-2y+2=0 represents

a] a pair of straight lines
b] ellipse
c]hyperbola centred at(2,-1)
d]circle centred at(2,1)

6 Answers

cirlce

:o how?

@ Philip
bhai circle mein same sign hoti hai x2 aur y2 ki

(x-2)^2-(y+1)^2=1

hence a hyperbola with ceter (2,-1)

philip coeff of x2 and y2 are different .. it can never be a circlee :O

nishant bhaiya .. another method ... ab - h² = -1 <0 and a+b = 0 which is a hyperbola !

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