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Ostrovityanka [42]
3 years ago
8

If u-ai + bj and v-ci + dj are vectors, then which of the following statements is not true?

Mathematics
1 answer:
alukav5142 [94]3 years ago
7 0

Answer:

Option C

Step-by-step explanation:

Given that u-ai + bj and v-ci + dj are vectors

We have dot product

u.v = (ai+bj).(ci+dj) hence inner product of u and v.  So option a is true

The dot product of u and v is a scalar is true because dot product is always a scalar

The dot product of u and v is a vector. is false because dot product is only a scalar and has no direction and hence cannot be a vector

The dot product of u and v is given by the expression ac+bd

True because we multiply corresponding i components and j components and add.

So only C is not true.

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