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S rationalized by multiplying the numerator and denominator by what?

S rationalized by multiplying the numerator and denominator by what?-example-1
User Firegloves
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1 Answer

21 votes
21 votes

Solution:

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

User Nickhil
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