Question

Rationalize the denominator of each term by
using (a + b) (a - b) = a? - b?
Substitute √3 value.​

Answer 1

Ans

Rationalize the denominator 4/(1+2√3)

Solution :

Step 1:

Here we have (1+2√3)  (in the form of a + c√b) in the denominator. Then we have to multiply the numerator and denominator by the conjugate of  (1+2√3).

Conjugate of (1 + 2√3) is (1 - 2√3)  

Step 2 :

By multiplying the numerators and denominators of first and second fraction, we get  

Step 3 :

By comparing the denominator with the algebraic identity a² - b² = (a + b)(a - b), we get

Step-by-step explanation:

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Answer 2

Answer:

it is the answer

Step-by-step explanation:

(a+b)(a-b)=a^2-b^2

(√3×√3)(√3-√3)=√3^2-√3^2

=3-3=0