Aspire Faculty ID #15472 · Topic: MAH MCA CET 2025 (Shift 1) · Just now
MAH MCA CET 2025 (Shift 1)

The projections of a line segment on the $X,Y,Z$ axes are $12,4,3$ respectively. The length and direction cosines are

Solution

Components are $(12,4,3)$. Length $L=\sqrt{12^2+4^2+3^2}=13$. Direction cosines $=\left(\dfrac{12}{13},\dfrac{4}{13},\dfrac{3}{13}\right)$.

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