-7² = -49
Given options are as follows -
a. (-6)^2
b. (1/3)^2
c. 0.5^2
d. -7^2
by solving 1 option we get
(-6)×(-6)
= 36
we get a positive value
because we know that (-)×(-) = +
so this option is not less than zero
again by solving 2 option we get
1/3^2
1/3× 1/3
= 1/9
it is also a positive value
because we know that (+)×(+) = +
so this option is not less than zero
Further by solving 3 option we get
(0.5)²
(0.5)×(0.5)
= 0.25
again it is also a positive value
so this option is not less than zero
but for the option 4
-(7)²
= -49
which is a negative value .
A negative number is any number that is less than zero
To learn more about Negative numbers
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