1. Signed Binary Addition Methods. For the following decimal numbers, perform the requested Binary Addition Methods. Assume that each number is confined to 4-bits, where the most significant bit is reserved as the sign bit. a) 410 and -210 i. Sign and Magnitude ii. Ones Complement iii. Twos Complement b) -510 and 310 i. Sign and Magnitude ii. Ones Complement iii. Twos Complement