Question

If a=3,b= -1 find (a/b + b/a)^2​

Answer 1

Answer:

a=3

b=-1

a/b=-3

b/a=-1/3

The ans. is 100/9=11 1/9

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Answer 2

Answer:

100/9

Step-by-step explanation:

=> a = 3

=> b = -1

=> (a/b + b/a) = (a² + b²)/ab

=> a² = 3² = 9

=> b² = (-1)² = 1

=> ab = 3×(-1) = -3

Now...

(a/b + b/a)² = {(a² + b²)/ab}²

= {(9+1)/-3}² = (10/-3)²

= 100/9 = 11.1111