Question:medium

If a line makes angles $45^\circ$ and $60^\circ$ with the positive $x$ and $y$ axes respectively, then the acute angle it makes with the $z$-axis is:

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Remember that the sum of squares of direction cosines is always 1. This is one of the most fundamental relations in 3D geometry!
Updated On: May 31, 2026
  • $60^\circ$
  • $30^\circ$
  • $45^\circ$
  • $90^\circ$
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The Correct Option is A

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