if two vectors a and b are such that I a I = 2

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Example 17 Find I a – b I, if two vectors a and b are such that I a I = 2, I b I = 3 and a . b = 4.
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Nov
Example 17 Find I a – b I, if two vectors a and b are such that I a I = 2, I b I = 3 and a . b = 4. Example 17 Find I a - b I I b I = 3 and a . b = 4. if two vectors [...]
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