Question

rationalize four root three -7

Answer 1

4√3 -7 * 4√3 +7 /4√3 +7

Now ,

by using a² - b² = (a+b )(a-b)

∴48 - 49 = -1.........numerator

4√3+7 ....denominator

So ans. is ..... -1 / 4√3 +7

Hope it helps !!!