Rationalise the denominator: 1/(8+3√7)
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Step-by-step explanation:
1.
------------
8 + 3√7.
= 1. 8-3√7
------------- × -----------
8+3√7. 8-3√7
= 8-3√7. 8-3√7
------------- = ---------- = 8-3√7
64 - 63. 1
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