Get Answers to all your Questions

header-bg qa

Distance of the point (α, β, y) is:
            A. β   B. |β|  C. |β| + |y|  D. √(α² + y²)

Answers (1)

Drawing a perpendicular from (α, β, y) to the y-axis gives us a foot of   \left ( \alpha ,\beta ,\gamma \right ) perpendicular with coordinates (0, β, 0).

Also, using the distance formula, we can calculate the distance between two points as:

AB=\sqrt{\left ( x_{2}-x_{1} \right )^{2}+\left ( y_{2}-y_{1} \right )^{2}+\left ( z_{2}-z_{1} \right )^{2}}

Thus, the required distance =\sqrt{\left ( \alpha-0 \right )^{2}+\left ( \beta-\beta \right )^{2}+\left(\gamma-0 \right )^{2}}=\sqrt{\alpha^{2}+\gamma^{2}}

(Option D)

Posted by


View full answer