Question

23. Check whether the following vectors are orthogonal. (i) Ă = 2î + 3ị and B = 4î – 5ſ​

Answer 1

Answer:

Combine exponents

2

−

−

1

2

{\color{#c92786}{qq^{2}}}-q-12

qq2−q−12

3

−

−

1

2

Answer 2

Answer:

Yes they are orthogonal.

For orthogonal vectors their dot product must be zero

A. B=10-6-4 (After solving i.i=1,j.j=1,k.k=1) A.B =0

As dot product is O so both vectors are orthogonal.