Question

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Answer 1

Step-by-step explanation:

we will rationalize the denominator by multiplying by 7-4√3 we'll get 1 in the denominator and (7-4√3)^2 in numerator

hence

a= 97

b=-56

plz mark as the brainliest answer

Answer 2

Answer:

in this question..

rationalise the denominator by multiply and divide the fraction by 7 -4√3

then we get

7 - 4√3/ 7+4√3 x 7 - 4√3/7-4√3

= (7-4√3)²/1

= 7² + (4√3)² - 56√3

=49 + 48 -56√3

=97 - 56√3 = a + b√3

on comparing

we get a = 97 and b = -56

hope this will help you