$\"\"$

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Direction cosines for the vector $\"\"$ are $\"\"$ and $\"\"$

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and the direction angles are $\"\"$ and $\"\"$ .

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where $\"\"$ magnitude of the vector $\"\"$ is $\"\"$ .

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$\"\"$

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The vector is $\"\"$ , where $\"\"$ .

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Direction cosines of the vector $\"\"$ are

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$\"\"$ .

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$\"\"$ and $\"\"$

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$\"\"$ and $\"\"$ .

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Direction angles of the vector $\"\"$ :

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$\"\"$

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$\"\"$

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Direction cosines of the vector $\"\"$ are $\"\"$ and $\"\"$ .

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Direction angles of the vector $\"\"$ are $\"\"$ .