Question

Pls tell the answer
Its urgent
Step by step

Answer 1

Answer:

a = 29/46

b = 9/46

Answer 2

Answer:

5+2√3/7+√3 = a - b√3

So first we will rationalise the denominator..

=> (5+2√3)(7-√3)/(7+√3)(7-√3) = a - b√3

=> (35-5√3+ 14√3-6)/(49-3) = a - b√3

=> (29+9√3)/46 = a - b√3

=> 29/46 + 9√3/46 = a - b√3

=> (29/46) - (-9√3/46) = a - b√3

by comparing both the sides, we see that

29/46 , which is a rational number sits in the place of 'a' and (-9/46) which is a rational numbers sits in the place of 'b'

hence ..

a = 29/46

b = -9/46

hope it helped :)