Math, asked by Sudhir1188, 1 year ago

plz answer plz its urgent

Attachments:

Answers

Answered by adibakhan64483
1
here is ur answer
................
Attachments:
Answered by Anonymous
13

x +  \frac{1}{x}  = 2.5 \\  \frac{ {x}^{2}  + 1}{x}  = 2.5 \\  {x}^{2}  + 1 = 2.5x \\  {x}^{2}  - 2.5x + 1 = 0 \\ a = 1 \:  \:  \:  \: b = 2.5 \:  \:  \:  \: c = 1 \\   \frac{ - b +  -  \sqrt{ {b}^{2} - 4ac } }{2a}  \\   \frac{ - 2.5 +  -  \sqrt{ {2.5}^{2}  - 4 \times 1 \times 1} }{2 \times 1}  \\   \frac{ - 2.5 +  -  \sqrt{6.25 - 4} }{2}  \\  \frac{ - 2.5 +  -  \sqrt{10.25} }{2}  \\  \frac{ - 2.5 +  -( 3.2)}{2}  \\ taking \:  +  \\   \frac{ - 2.5 + 3.2}{2}  \\  \frac{0.7}{2}  \\ x = 0.35 \\  \\ taking \:  -  \\   \frac{ - 2.5 - 3.2}{2}   \\ \frac{5.7}{2}  \\ x = 2.85
THANKS
Similar questions