engineering recuitment FSSAI Assistant Mock Test 2021 Quantitative Aptitude Ratio and Proportion Componendo or Dividendo
If x = 2a/b, then find the value of \([a^2/(a^2 + b^2)] - [b^2/(a^2 + b^2)]\).
1
\(\frac{{{x^2}\; - \;4}}{{{x^2}\; - \;4}}\)
2
\( \frac{{{x^2}\; - \;2}}{{{x^2}\; + \;2}}\)
3
\(\frac{{{x^2}\; - \;4}}{{{x^2}\; + \;4}}\)
4
None of these.