sreeparnatalukdar
sreeparnatalukdar
24-06-2017
Mathematics
contestada
x^2-16>0 range of x?
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mathmate
mathmate
25-06-2017
Assuming "range" is used in the normal Englsih sense, and not the mathematical meaning for the possible value of a function.
If we limit ourselves to real numbers, then
-4<=x<=4 for x^2-16>0
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ghanami
ghanami
25-06-2017
hello :
x²-16 >0 ... x² >16
√x² > √16 but : √16 = 4 and √x² =
|x |
conclusion :
|x | > 4
the range is : x < 4 or x > 4
Answer Link
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