Question
If a line has direction ratios 2, -1, -2, determine its
direction cosines.Solution
Directions cosines are: => 2/[√(22 + (-1)2 + (-2)2)], -1/[√(22 + (-1)2 + (-2)2)], -2/[√(22 + (-1)2 + (-2)2)] => 2/3, -1/3, -2/3
More Quant Miscellaneous Questions
- What will come in the place of question mark (?) in the given expression?
5555 ÷ 11 ÷ 5 = 100 +? 216% of 350 + 273 = ?2 × 21
(70% of 480) ÷ 6 + ? = 45% of 3500 + 802 + 272
What will come in place of (?) in the given expression.
√625 + 12 × 5 = ?If (3 × 144 – 252 ÷ 14) ÷ 18 = √1024 – x, then find the value of ‘x’.
1231 + 1312 + 2113 – 3211 = ?
(96% of 1100) + 92 × 4 = ? + 46 × 16
What will come in the place of question mark (?) in the given expression?
(252 + 198) ÷ ? + 126 ÷ 3 = 144 ÷ 2
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