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algebra

posted by on .

simplify: sqrt (3/8)

a)3/4
b) sqrt(3) / 2 sqrt(2)
c) 3/ sqrt (2)
d)sqrt(6/4)

  • algebra - ,

    √(3/8)
    = √3/√8 * √8/√8
    = √24/8
    = 2√6/8
    = √6/4

    which does not match any of your answers, unless you were careless with the use of brackets.

  • algebra - ,

    im so clueless on how to write this square roots

  • algebra - ,

    It is not the way you write the square root sign, but rather your use of brackets that is the problem.

    e.g. for the correct answer above, you should have written

    sqrt(6)/4
    (take the square root of 6, then divide by 4,
    the way you had it says, divide 6 by 4, then take the square root)

  • For Ant/Kiddo - parentheses - ,

    You need to take care when transcribing a properly typeset expression onto one line for posting.
    The numerator and denominator are well defined in the original document, which we do not see.
    Whenever you encounter a division (or a fraction), you will need to insert parentheses to delimit the numerator and denominator. The same applies to square-roots.

    For example, in answer (b) above, if it was printed as:

    √3
    --------
    2√2

    You will mentally insert parentheses around the numerator and denominator as follows:

    (√3)
    --------
    (2√2)

    Then transcribe it as:
    (sqrt(3))/(2sqrt(2)) to give the same expression. The pair of parentheses around the numerator may then be optionally removed, afterwards.

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