If for all real x the vector cxhati-6hat...

If for all real x the vector `cxhati-6hatj+3hatk and xhati+2hatj+2cxhatk` makes an obtuse angle with one another then find the value of c

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The correct Answer is:

c lies between `(4)/(3) and 0`

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ML KHANNA-ADDITION AND MULTIPLICATION OF VECTORS -Problem Set (2) (FILL IN THE BLANKS)

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