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Rationalise the denominator and simplify. |
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Answer» -step EXPLANATION:(i).5/√2=(5/√2)(√2/√2)=(5√2)/2(II). 7/(8-√2)=7(8+√2)/(8-√2)(8+√2)=7(8+√2)/(8²-(√2)²)=7(8+√2)/(64-2)=7(8+√2)/62hope you got it. |
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