Q38 of 46 Page 215

Fill in the blanks

The value of the expression is ______.

We have,


=


=


=


=


Thus ,


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36

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The vectors are the adjacent sides of a parallelogram. The acute angel between its diagonals is ____________.

 37

Fill in the blanks

The values of k for which and is parallel to holds true are _______.

 39

Fill in the blanks

If and then is equal to ________.

 40

Fill in the blanks

If is any non-zero vector, then equals ______.