If A is a square matrix such that  then write the value of  where I is an identity matrix.

If  find the value of x.

If  is a relation on N, write the range of R.

Find the value(s) of x for which y =  is an increasing function.

Find the equations of the tangent and normal to the curve 

If the function f: R  R  be given by  be given by  find fog and gof and hence find fog (2) and gof ( −3).

Prove that

10.

Prove that
If  find the value of x.