Question

find the value of x-1/x if value of x is 7+4*3

Answer 1

Solution :-

x = 7 + 4*3

x/1 - 1/x

⇒ [7 + (4*3)]/1 - 1/[7 + (4*3)]

⇒ [7 + 12]/1 - 1/[7 + 12]

⇒ 19/1 - 1/19

Taking LCM of the denominators and then solving it.

⇒ (361 - 1)/361

⇒ 360/19

= 18 18/19

So, the value of x - 1/x is 360/19 or 18 18/19

Answer.