Question

Find rational numbers a and b such that 2+5√7 /2−5√7 = a+√7b.pls send it is urgent.

Answer 1

Answer:

(2 + 5√7)/(2 – 5√7) = [(2 + 5√7)/(2 – 5√7)] × [(2 + 5√7)/(2 + 5√7)] = [ (4 + 175 + 20√7)/(4 – 175)] = [(179 + 20√7)/(-171)] = a + b√7 So, a = - 179/171 b = - 20/171

Step-by-step explanation:

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