Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Algebra

Question:

What is the value of the following expression?

$2^2(\frac{x^a}{x^b})^{(a+b)}×3^2(\frac{x^b}{x^c})^{(b+c)}×6^{-2}(\frac{x^c}{x^a})^{(a+c)}$

Options:

1

0

4

9

Correct Answer:

1

Explanation:

$2^2(\frac{x^a}{x^b})^{(a+b)}×3^2(\frac{x^b}{x^c})^{(b+c)}×6^{-2}(\frac{x^c}{x^a})^{(a+c)}$

Put the value of every variable as 1.

= $2^2(\frac{1^1}{1^1})^{(1+1)}×3^2(\frac{1^1}{1^1})^{(1+1)}×6^{-2}(\frac{1^1}{1^1})^{(1+1)}$

= 4 × 9 ÷ 36

= 36 ÷ 36 = 1