Question

1. 5+2√6/5-2√6 = a+b√6

Answer 1

Answer:

5+2✓6/5-2✓6 =a+b✓6

(5+2✓6)(5+2✓6)/(5-2✓6)(5+2✓6)

(5)²+(2✓6)²+2(5)(2✓6)/(5)²-(2✓6)²

25+24+20✓6/25-24

49+20✓6/1

therefore, a+b✓6=49+20✓6

therefore, a=49 &b=20

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