1. [20pt] Solve the floating-point arithmetic problems. You need to have the results rounded to 4 binary digit to the right of the binary point in the normalized form. a. Calculate the sum of 1.0011 x 2-1 + (-1.1010 x 22) b. Calculate the product of 1.0011 x 2-1x (- 1.1010 x 24)