Q20 of 181 Page 1080

Mark (√) against the correct answer in the following:

If and then the angle between and is


Given


|


And


x =


| x =


Let the angle between the vector be θ


As we know that,


| x


Substituting the values,


7=2 7


⇒ =


⇒

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Mark (√) against the correct answer in the following:

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Mark (√) against the correct answer in the following:

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21

Mark (√) against the correct answer in the following:

If and then


22

Mark (√) against the correct answer in the following:

Two adjacent sides of a || gm are represented by the vectors and The area of the || gm is