Question

1.Rationalize the denominator 4/√7+√3​

Answer 1

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Answer 2

4/√7+√3

= 4/(√7+√3) × (√7-√3)/(√7–√3)

= 4(√7-√3) / (√7+√3)(√7–√3)

= 4(√7-√3) / (√7)²–(√3)²

= 4(√7-√3) / 4

= (√7-√3)