Write the direction ratios of the vector -> a= hat i+ hat j-2 ha | Filo
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Class 12



Vector Algebra

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Write the direction ratios of the vector and hence calculate its direction cosines.

Solution: Solution: Here,
So, direction ratios will be .
Let its direction cosines are (k,k,-2k).

We will take for direction cosines in the same direction of vector.
So, direction cosines will be
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