What is `(d^(2)y)/(dx^(2))` equal to ?

If y=f(x),p=(dy)/(dx) and q=(d^(2)y)/(dx^(2)), then what is (d^(2)x)/(dy^(2)) equal to ?

If y=f(x)p=(dy)/(dx)" and q"=(d^(2)y)/(dx^(2)) . then what is (d^(2)x)/(dy^(2)) equal to ?

Consider the equation x^(y)=e^(x-y) What is (d^(2)y)/(dx^(2)) at x=1 equal to ?

If x=at^(2),y=2at then (d^(2)y)/(dx^(2)) is equal to

If x=logt and y=t^(2)-1 , then what is (d^(2)y)/(dx^(2)) at t = 1 equal to?

If x^(2) y^(5) = (x + y)^(7) , " then " (d^(2)y)/(dx^(2)) is equal to

If y^(2) = p (x) is a polynomial of degree 3 , then what is 2 "" (d)/(dx) [y^(3) (d^(2) y)/(dx^(2))] equal to

If y = x+e^(x) , then (d^(2)y)/(dx^(2)) is equal to