Solve the following problem corresponding to computer arithmetic. Assuming a floating point number in 32-bit IEEE 754 format, solve the following.

1) Describe +0, - in IEEE754 format, respectively.

2) Describe the operation result of -1.1101 * 2^-4 + -1.0111 * 10^-2 in normal format

3) Convert the following Reverse Polish expression CDE+-FGH/ -J+*K+, to infix