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Question
Distance of the point (α, β, γ) from y-axis is ____________.
Options
β
|β|
|b| + |γ|
`sqrt("a"^2 + γ^2)`
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Solution
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)`
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