18. Rationalize the denominators
4/√ 7+√ 3
.
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Answered by
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Answered by
0
Answer:
√7-√3
Step-by-step explanation:
=4/√7+√3 × √7-√3)√7-√3
=4(√7-√3)/(√7)^2-(√3)^2 [(a-b)(a+b)=a^2+b^2]
=4(√7-√3)/7-3
=4(√7-√3)/4
=√7-√3
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