Question

S rationalized by multiplying the numerator and denominator by what?

Answer 1

Given the expression;

`(5)/(√(7)-2)`

Rationalization is done by multiplying the numerator and the denominator by the conjugate.

The conjugate is where we change the sign in the middle of two terms.

Thus, rationalization is done as;

`(5)/(√(7)-2)*(√(7)+2)/(√(7)+2)`

CORRECT OPTION:

`√(7)+2`