why is the cube of a negative number alaway negative and the cube of a positive number always positive?
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because - × - = + but - × - × - = -
and + × + =+ and + × + × + = +
same again
if we doing cube of any no.
we get -ive cube if no. is -ive
let an example
-2^3= -2×-2×-2=-8
and + × + =+ and + × + × + = +
same again
if we doing cube of any no.
we get -ive cube if no. is -ive
let an example
-2^3= -2×-2×-2=-8
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