What is the range of a 32-bit signed integer?

From -2147483647 to 2147483648.

Explanation:

A 32 bit integer has 2^32 = 4294967296 possible values. A signed integer has positive and negative values as well as the zero.

Of these values (2^32)/2 will be positive, (2^32)/2 - 1 will be negative and one will be the zero.

Therefore the range is from -(2^32)/2 + 1 to (2^32)/2.

This can also be expressed as from -2147483647 to 2147483648.

x+2 because it just doubles hon so the pattern can actually tell you the expression.

so for example,

if x=2 then 2+2 is 4

if x=4 then 4+4 is 8

and so on and so forth.

i really hope that this makes sense and you out in a way hon: )

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