A line OP through origin O is inclined at 30^o and 45^o to OX and OY respectively. The angle at which it is

### Question Asked by a Student from EXXAMM.com Team

Q 1257312284.     A line OP through origin O is inclined at 30^o and 45^o to OX and OY respectively. The angle at which it is inclined to OZ is:
A

Such line does not exist.

B

60°

C

45°

D

90°

#### HINT

Let l, m, n be the direction cosines of the given vector, then l^2 + m^2 + n^2 = 1

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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