যদি \(a + b = \sqrt 5 \) এবং \(a - b = \sqrt 3 \) হয় তাহলে a2 +b2 -এর মান কত ?
Correct Answer: Option C
\(\frac{{(a + b)2 + (a - b)2}}{2} = \frac{{(\sqrt 5 )2 + (\sqrt 3 )2}}{2} = \frac{8}{2} = 4\)
Download our app for free and access thousands of MCQ questions with detailed solutions