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secondary 3 | A Maths
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for 19b, shouldn’t the smallest value be -7?
Date Posted: 6 years ago
Views: 241
-7 is out of the range. Thus -6 is the correct answer as not only is the smallest value, but it is within the range
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assuming you managed to get -2 sqrt 10 < b < 2 sqrt 10:
-2 sqrt 10 = -6.32...
so the closest integer to -6.32 is -6
your answer (-7) would have surpassed the lower boundary of -2 sqrt 10 (as seen from the number line) and so it is wrong.
hope this helps :)
-2 sqrt 10 = -6.32...
so the closest integer to -6.32 is -6
your answer (-7) would have surpassed the lower boundary of -2 sqrt 10 (as seen from the number line) and so it is wrong.
hope this helps :)
Date Posted:
6 years ago
Thanks :)
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