Question

Distance of the point (α, β, γ) from y-axis is ____________.

Options

• β

• |β|

• |b| + |γ|

• `sqrt("a"^2 + γ^2)`

Answer 1

Distance of the point (α, β, γ) from y-axis is `sqrt("a"^2 + γ^2)`.

Explanation:

The given point is (α, β, γ) 

Any point on y-axis = (0, β, 0)

∴ Required distance = `sqrt((alpha - 0)^2 + (beta - beta)^2 + (γ - 0)^2)`

= `sqrt(alpha^2 + γ^2)`