If y=m1x+c and y=m2x+c are two tangents to the parabola y^2+4a(x+a)=0, thena) m1+m2=0b) 1+ m1+m2=0c) m1m2-1=0d) 1+m1m2=0
If y=m1x+c and y=m2x+c are two tangents to the parabola y^2+4a(x+a)=0, then
a) m1+m2=0
b) 1+ m1+m2=0
c) m1m2-1=0
d) 1+m1m2=0
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