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If g^2+1/g^2=51, find the positive value of g-1/g
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3 votes
If g^2+1/g^2=51, find the positive value of g-1/g

User Oaugustopro
by
3.0k points

1 Answer

2 votes

Answer:

7

Explanation:

Note that

(g -
(1)/(g) )² = g² - 2 +
(1)/(g^2) = 51 - 2 = 49

Take the square root of both sides

g -
(1)/(g) =
√(49) = 7 ← the positive value

User Hroncok
by
3.4k points
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