Question

Find a unit of x,y,and z .
class 11 .
unit and measurement.​

Answer 1

Explanation:

Why x is often used to represent a variable is

discussed The Origins of the Mathematical

Convention of Using "X" as the Unknown. Not a

bad read; remember that Arabs invented algebra,

and the word algebra itself comes from the

Arabic aljabr. So an Arabic origin is very plausible

for something like x being the unknown quantity

is very plausible.

Interestingly, the first recorded use of this English

symbol was by Descartes, who also invented the

Cartesian plane (often also called the xy plane).

(OK, he was French, but its the same letter]. The

Cartesian plane was in fact named after

Descartes.