Question

what is 1's complement of 20?
How to do explain ​

Answer 1

Answer:

To get 1's complement of a binary number, simply invert the given number. For example, 1's complement of binary number 110010 is 001101. To get 2's complement of binary number is 1's complement of given number plus 1 to the least significant bit (LSB).

Answer 2

Answer:

Complement means sum of any teo

angle should be 90°

And here one angle is 20° then

another one eill be 70°