Question

if a²+b²=13 and ab=6.find tge value of (a+b)​

Answer 1

Answer:

5

Step-by-step explanation:

According to exponential theorems

(a + b)² = a² + b² + 2ab

We know that

a² + b² = 13

ab = 6

Substituting the value of (a² + b²) and (ab) in the theorem, we get

(a + b)² = 13 + 2(6)

(a + b)² = 13 + 12

(a + b)² = 25

(a + b) = √25

(a + b) = 5

Hope this answer helps you.