Question

if ab+bc+ca=4 and abc=2 then find 1/a+1/b+1/c​

Answer 1

Answer:

3/2 is a answer

Answer 2

Answer:

2

Step-by-step explanation:

ab+bc+ca=4

dividing both side by abc we get

(ab+bc+ca)/abc = 4/abc

(ab/abc) + (bc/abc) + (ca/abc) = 4/2

1/c + 1/a + 1/b = 2