Answer:
The electric field is

Step-by-step explanation:
From the question we are told that
The radius of the inner sphere is

The radius of the outer sphere is

The charge on the inner sphere is

The charge on the outer sphere is

The position from the origin is

Generally the electric field is mathematically represented as

The reason for using
for the calculation is due to the fact that the position considered is greater than the
but less than

Here k is the Coulomb constant with value

So

