4 upon root 5 minus 1 rationalise the denominator
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4/√5-1
4/√5-1×√5+1/√5+1
4√5+1/5-1
4√5+1/4
√5+1 is the answer.
hope it helps you.
mark as brainliest please.
4/√5-1×√5+1/√5+1
4√5+1/5-1
4√5+1/4
√5+1 is the answer.
hope it helps you.
mark as brainliest please.
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