Question

यदि a + b = 5 तथा ab = 4 हो तो (a-b) का मान​

Answer 1

Answer:

3

Step-by-step explanation:

(a+b)2 - (a-b)2=4ab

(5)2 - (a-b)2=4(4)

25-16=(a-b)2

9=(a-b)2

3=a-b