square of any real number is positive true or false ?
Answers
Step-by-step explanation:
This statement is true
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If positive is ✖ by positive then yhe answer is positive
And
When the negative is multiplied by negative then also the answer is positive
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Square of any real number is positive : FALSE
Square of any real number is always Non-Negative
Square of 0 is 0 which is not positive
Hence Given statement is False
True Statement can be
Square of any non zero real number is always Positive
or
Square of any real number is always Non-Negative
Square of a number is basically number multiplied by the number itself.
a² = a x a
Take few case a < 0
a = 0
a > 0
a < 0 => a = -x where x is positive
a² = (-x)² = (-x) * (-x)
(-)(-) = +
= x * x
Hence positive as x is positive
a = 0
=> a² = 0 ( non negative)
a > 0
=> a² = Positive
Hence Square of any number is Non negative
Square of all non zero numbers is Positive
Square of any real number is positive : FALSE
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