Question

When `"x" = "x"/2`, then tan x is ____________.

Options

• `1/sqrt3`

• 1

• `- infty`

• not defined

Answer 1

When `"x" = "x"/2`, then tan x is not defined.

Explanation:

`"tan" ("x"/2) = ("sin" ("x"/2))/("cos" ("x"/2)) = 1/0 = "not defined"`