The slope of angular bisectors of pair of lines (ax+by)2=c(bx−ay)2,(c>0) are
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a
−ab,ba
b
ab,−ba
c
ac,−ca
d
ca,−ac
answer is A.
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Detailed Solution
a2x2+2abxy+b2y2=cb2x2-2abcxy+ca2y2 x2a2-cb2+2abxy1+c+y2(b2-ca2)=0apply angular bisector formulabisector are parallel and perpendicular to the line ax+by+k=0