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Absolute x
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mjjking
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I really don't get why answer is A ...
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Tryingmybest
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X is negative
when X is negative |x| = -x because output of modulus will always be positive example |-3|= -( -3)
SQT ( -x|x|) = SQT(( -x)(-x))
= SQT( -x ^ 2)
-= -x
Please let me know if this is not clear
when X is negative |x| = -x because output of modulus will always be positive example |-3|= -( -3)
SQT ( -x|x|) = SQT(( -x)(-x))
= SQT( -x ^ 2)
-= -x
Please let me know if this is not clear
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DanaJ
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Think of it this way: x is negative, right? That makes -x = |x| positive.
This means that sqrt(-x*|x|) = sqrt(|x|^2) = |x| = -x.
RULE: sqrt(n) will always be positive or equal to zero.
This means that sqrt(-x*|x|) = sqrt(|x|^2) = |x| = -x.
RULE: sqrt(n) will always be positive or equal to zero.
