Question

37. If a2 + b2 = 41 and ab = 20 ,then the positive value for expression (a–b) will be ___.

Answer 1

Answer:

And is —20 because the ab is 20 and a—b= –20

Answer 2

Answer:

1

Step-by-step explanation:

a^2 + b^2 = 41 ab = 20

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

=> (a + b)^2 = 41 - 2*20

=> (a + b)^2 = 41 - 40

=> (a + b)^2 = 1

=> (a + b) = √1 = 1