if x+1/x=3 then what will be the value of x ?
Answers
Answered by
1
Answer:
Step-by-step explanation:
x+1/x=3
x+1=3x
3x-x=1
2x=1
x=1/2
Plz mrk it brainliest
Answered by
3
GIVEN :
x + 1 / x = 3
TO FIND :
Value of x
SOLUTION - 1 :
(x + 1)/x = 3
x + 1 = 3x
3x - x = 1
2x = 1
x = 1/2
GIVEN :
x + (1/x) = 3
TO FIND :
Value of x
SOLUTION - 2 :
x + (1/x) = 3
x² + 1 /x = 3
x² + 1 = 3x
x² - 3x + 1 = 0
Use Quadratic Formula,
x = -b ± √(b² - 4ac)/2a
x = -(-3) ± √[(3)² - 4(1)(1)] / 2
x = 3 ± √[9 - 4 ] /2
x = (3 + √5)/2 or x = (3 - √5)/2
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