" 7.For the curve "xy=c^(2)" the subnormal at any point varies as "

For the curve y^(n)=a^(n-1)x if the subnormal at any point is a constant, then n is equal to

For the curve y^(n) -=a^(n-1)x if the subnormal at any point is a constant then n=

For the curve y=ax^(n) the length of the subnormal at any point is a constant. The value of n must be

For the curve xy^(m)=a^(m+1) the length of the subnormal at any point is a constant. Then the value of m must be

The length of the normal to the curve y=a cos h (x/a) at any point varies as

The length of the normal to the curve y=a((e^(-x//a)+e^(x//a))/2) at any point varies as the

The subnormal to the curve xy=c^2 at any point vaires directly as

The length of the normal to the curve y=a((e^(-x//a)+e^(x//a))/(2)) at any point varies as the