a + b = √16 এবং a - b = √9 হলে 4ab এর মান কত?
Solution
Correct Answer: Option B
দেয়া আছে
a + b = √16 এবং a - b = √9
আমরা জানি,
4ab = (a + b)2 - (a - b)2
= (√16)2 - (√9)2
= 16 - 9
= 7
a + b = √16 এবং a - b = √9
আমরা জানি,
4ab = (a + b)2 - (a - b)2
= (√16)2 - (√9)2
= 16 - 9
= 7
Practice More Questions on Our App!
Download our app for free and access thousands of MCQ questions with detailed solutions