[" If the cunes "y+1-ax^(2)" and "y=],[x^(2)" intersect erthegonally then "]

If curve y=1-ax^(2) and y=x^(2) intersect orthogonally then the value of a is

If curve y = 1 - ax^2 and y = x^2 intersect orthogonally then the value of a is

If curve y = 1 - ax^2 and y = x^2 intersect orthogonally then the value of a is

If the curves 2x^(2)+3y^(2)=6 and ax^(2)+4y^(2)=4 intersect orthogonally, then a =

If the curves 2x^(2)+3y^(2)=6 and ax^(2)+4y^(2)=4 intersect orthogonally, then a =

If the curve ax^(2)+by^(2)=1 and a'x^(2)+b'y^(2)=1 intersect orthogonally, then

The curves ax^(2)+by^(2)=1 and Ax^(2)+B y^(2) =1 intersect orthogonally, then

If the circles x ^(2) + y ^(2) + 5x -6y-1=0 and x ^(2) + y^(2) +ax -y +1=0 intersect orthogonally (the tangents at the point of intersection of the circles are at right angles), the value of a is

If the lines 2x+3y-1=0 and kx-y+4=0 intersect the coordinate axes in concyclic points then k-1=