Question

Rationalize the denominator of 7 /2 + 5√3

Answer 1

Answer:

7/2+5/√3 (given)

(7√3+10)/2√3

Now rationalise denominator

(7√3+10) /2√3*2√3/2√3

(14*3+20√3) /4*3 (since √3*√3 =3)

(42+20√3)/12

42/12+20√3/12

7/2+5√3/3

hope it it clear ☺