Identify the following as rational or irrational numbers. Give t
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    Number Systems

    Multiple Choice QuestionsShort Answer Type

    81. Rationalise the denominators of the following:

    fraction numerator 1 over denominator square root of 7 minus square root of 6 end fraction
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    Answer
    82. Rationalise the denominators of the following:

    fraction numerator 1 over denominator square root of 5 plus square root of 2 end fraction
    119 Views
    Answer
    83. Rationalise the denominators of the following:

    fraction numerator 1 over denominator square root of 7 minus 2 end fraction equals fraction numerator 1 over denominator square root of 7 minus 2 end fraction cross times fraction numerator square root of 7 plus 2 over denominator square root of 7 plus 2 end fraction

     
    128 Views
    Answer
    84. Identify the following as rational or irrational numbers. Give the decimal representation of rational numbers.

    square root of 4
    171 Views
    Answer
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    85. Identify the following as rational or irrational numbers. Give the decimal representation of rational numbers.

    3 square root of 18
    150 Views
    Answer
    86. Identify the following as rational or irrational numbers. Give the decimal representation of rational numbers.

    square root of 1.44 end root
    376 Views
    Answer
    87. Identify the following as rational or irrational numbers. Give the decimal representation of rational numbers.

    square root of 9 over 27 end root
    192 Views
    Answer
    88. Identify the following as rational or irrational numbers. Give the decimal representation of rational numbers.

    negative square root of 0.64 end root
    135 Views
    Answer
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    89. Identify the following as rational or irrational numbers. Give the decimal representation of rational numbers.

    square root of 100

    square root of 100 square root of 100 equals square root of 10 cross times 10 end root equals 10
    which is a rational number.

    Its decimal representation is 10.0.
    149 Views
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    90. In the following equations, find which variables x, y, z etc., represent rational numbers and which represent irrational numbers:

    x2 = 5
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    Answer
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