Let any double ordinate `PNP^1` of the hyperbol `x^2/9-y^2/4=1` be produced both sides to meet the asymptotes in Q and Q', then `PQ.P'Q` is equal to

Let any double ordinate PNP 'of the hyperbola (x^(2))/(25)-(y^(2))/(16)=1 be produced on both sides to meet the asymptotes in Q and Q' . Then PQ.P'Q is equal to 25 (b) 16 (c) 41 (d) none of these

Let any double ordinate P N P ' of the hyperbola (x^2)/(25)-(y^2)/(16)=1 be produced on both sides to meet the asymptotes in Q and Q ' . Then P Q.P^(prime)Q is equal to (a) 25 (b) 16 (c) 41 (d) none of these

Let any double ordinate P N P ' of the hyperbola (x^2)/(25)-(y^2)/(16)=1 be produced on both sides to meet the asymptotes in Qa n dQ ' . Then P QdotP^(prime)Q is equal to 25 (b) 16 (c) 41 (d) none of these

Let any double ordinate P N P ' of the hyperbola (x^2)/(25)-(y^2)/(16)=1 be produced on both sides to meet the asymptotes in Qa n dQ ' . Then P QdotP^(prime)Q is equal to 25 (b) 16 (c) 41 (d) none of these

Let any double ordinate P N P ' of the hyperbola (x^2)/(25)-(y^2)/(16)=1 be produced on both sides to meet the asymptotes in Qa n dQ ' . Then P QdotP^(prime)Q is equal to 25 (b) 16 (c) 41 (d) none of these

The tangent at P on the hyperbola (x^(2))/(a^(2)) -(y^(2))/(b^(2))=1 meets one of the asymptote in Q. Then the locus of the mid-point of PQ is

The tangent at P on the hyperbola (x^(2))/(a^(2)) -(y^(2))/(b^(2))=1 meets one of the asymptote in Q. Then the locus of the mid-point of PQ is