Question

Using rationalisation solve the following
(a) Write the reciprocal of 5 - 2
(b) if v2 =1.414, V3 -1.732, then find the value of
$4 \div 3 \sqrt{3 \: - 2 \sqrt{2 \: } } + 3 \div 3 \sqrt{3} + 2 \sqrt{2}$
(c) Find the values of a and b if
$\sqrt{5} - 1 \div \sqrt{5} + 1 \: + \sqrt{5} + 1 \: \div \sqrt{5} - 1 \\ = a + b \sqrt{5}$
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Answer 1

Answer:

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