Question

The value of the sum of two vectors and it with as the angle between them is​

Answer 1

Answer:

The dot product, or inner product, of two vectors, is the sum of the products of corresponding components. Equivalently, it is the product of their magnitudes, times the cosine of the angle between them. The dot product of a vector with itself is the square of its magnitude.

Explanation:

Answer 2

Answer:

Here, ∣

A

+

B

∣=∣

A

−

B

∣

A

2

+B

2

+2

A

.

B

=A

2

+B

2

−2

A

.

B

4

A

.

B

=0

As dot products of two vectors is zero so the angle between them will be 90

o

.

Explanation:

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