Question

√5+2/√5-2 =a+b√5 find the values of a and b​

Answer 1

Answer:

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Answer 2

Answer:

a = 9 , and b = 4

Explanation :

√5+2/√5-2 = a+b√5

= (√5+2)(√5+2) / (√5-2)(√5+2)=a+b√5

= (√5+2)² / (√5)²-(2)² = a+b√5

=(√5)²+(2)²+2×√5×2 / 5+4 = a+b√5

= 5+4+4√5 / 1 = a+b√5

= 9+4√5 = a+b√5

= 9+4 = a+b

= a = 9

b = 4

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