CBSE Class 12-science Answered
finding direction ratios when direction cosine is found
Asked by Bharath Sivan | 06 Feb, 2014, 07:50: PM
Expert Answer
Dear Bharath
Thanks for asking us a question in Ask the Expert section of TopperLearning.com.
We can find direction cosines when direction ratios are given.
Let a,b,c be the direction ratios of a line.
Then fiind
Thus, the direction cosines are,
Direction ratios are the ratios and hence can take n number of fractional forms.
Thus, when the direction cosines are given, we cannot find a particular direction ratio.
Regards
Topperlearning Team.
Topperlearning Team.
Answered by | 07 Feb, 2014, 10:20: AM
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