IF u=`x^2+y^2` and x=s+3t,y=2s-t, then-

If u=x^(2) and x=s+3t,y=2s-t, then (d^(2)u)/(ds^(2)) is (a) (5)/(2)t(b)20t^(8)(c)(5)/(16t^(6))(d) non of these

If u=x^2 and x=s+3t, y=2s-t, then (d^2u)/(ds^2) is (a) 5/2 t (b) 20t^8 (c) 5/(16t^6) (d) non of these

The point of intersection of the curve whose parametrix equations are x=t^(2)+1, y=2t" and " x=2s, y=2/s, is given by

The point of intersection of the curve whose parametric equations are x=t^(2)+1, y=2t" and " x=2s, y=2/s, is given by

The point of intersection of the curve whose parametrix equations are x=t^(2)+1, y=2t" and " x=2s, y=2/s, is given by

The point of intersection of the curves whose parametric equations are x=t^2+1,y=2t and x=2s,y=2/s is given by :

The point of intersection of the curve whose parametrix equations are x=t^(2)+1, y=2t" and " x=2s, y=2/s, is given by

If u=sin^(-1)(x-y),x=3t,y=4t^(3) , then what is the derivative of u with respect to t? (A) 3(1-t^2) (B) 3(1-t^2)^(-1/2) (C) 5(1-t^2)^(-1/2) (D) 5(1-t^2)