If a=3,b= -1 find (a/b + b/a)^2
Answers
Answered by
3
Answer:
a=3
b=-1
a/b=-3
b/a=-1/3
The ans. is 100/9=11 1/9
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Answered by
6
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
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