Question

यदि a+b=3 और ab=2 है तो a²+b² का मान बताए​

Answer 1

Step-by-step explanation:

given

a+b=3

ab=2

a²+b²=(a+b)²-2ab

=(3)²-2(2)

9-4

5

Answer 2

Step-by-step explanation:

Given that :-

a+b=3

ab=2

we know that

(a+b)²=a²+b²+2ab

=>3²=a²+b²+2(2)

=>9=a²+b²+4

=>a²+b²=9-4

=>a²+b²=5

The value of a²+b²=5