Question on: JAMB Mathematics - 1998

Find the value of k if (\frac{k}{\sqrt{3} + \sqrt{2}}) = k(\sqrt{3 - 2})

A
3
B
2
C
\(\sqrt{3}\)
D
\(\sqrt 2\)
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Correct Option: D

(\frac{k}{\sqrt{3} + \sqrt{2}}) = k(\sqrt{3 - 2})

(\frac{k}{\sqrt{3} + \sqrt{2}}) x (\frac{\sqrt{3} - \sqrt{2}}{\sqrt{3} - \sqrt{2}})

= k(\sqrt{3 - 2})

= k((\sqrt{3} - \sqrt{2}))

= k(\sqrt{3 - 2})

= k(\sqrt{3}) - k(\sqrt{2})

= k(\sqrt{3 - 2})

k2 = (\sqrt{2})

k = (\frac{2}{\sqrt{2}})

= (\sqrt{2})

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