Asked by Todoroki
Find the square root of 121
is 12 right???
is 12 right???
Answers
Answered by
oobleck
well, geez -- does
12*12 = 121 ?
Learn to check your answers
yes, even after just guessing (because clearly, you did not bother to grab your calculator)
12*12 = 121 ?
Learn to check your answers
yes, even after just guessing (because clearly, you did not bother to grab your calculator)
Answered by
Bosnian
121 = 11 • 11 = 11²
√121 = √(11²) = ± 11
√121 = √(11²) = ± 11
Answered by
oobleck
just to note the details,√121 = 11
just because (-11)^2 is also 121, that does not mean that it is "the square root" of 121
just because (-11)^2 is also 121, that does not mean that it is "the square root" of 121
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