is 25 a decimal number

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is 25 a decimal number

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Convert 25 in to binary system and take two's complement of that.

u know how to convert 25 into binary. express it as

25 = 0 * 2^7+0 * 2^6+0 * 2^5+1 * 2^4+ 1 * 2^3+ 0 * 2^2 + 0 2^1+1 * 2^0

25 = 0001 1001

take one' complement : 1110 0110 toggle 1s and 0s

add 1 to this number : 1110 0111 this is -25

u know how to convert 25 into binary. express it as

25 = 0 * 2^7+0 * 2^6+0 * 2^5+1 * 2^4+ 1 * 2^3+ 0 * 2^2 + 0 2^1+1 * 2^0

25 = 0001 1001

take one' complement : 1110 0110 toggle 1s and 0s

add 1 to this number : 1110 0111 this is -25