a+b=3 এবং ab=2 হলে ,a²+b² এর মান কত ?

B 1

C 2

D 5

Solution

Correct Answer: Option D

দেওয়া আছে ,
         a+b =3
  এবং ab=2
a²+b² =(a+b)²-2ab
          =(3)²-2.2
          =9-4
          =5

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions