3-d

Question: A line makes angles of $45{}^\circ $and$60{}^\circ $ with the positive axes of X and Y respectively. The angle made by the same line with the positive axis of Z, is

1) $30{}^\circ $or $60{}^\circ $

2) $60{}^\circ $or $90{}^\circ $

3) $90{}^\circ $or $120{}^\circ $

4) $60{}^\circ $or $120{}^\circ $

Solution:

Explanation: No Explanation

System of co-ordinates Direction cosines and direction ratios Projection

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