i. and

Given Vectors :

1)

2)

3)

To Find :

Formulae :

1) Scalar Triple Product:

If

Then,

2) Determinant :

Answer :

For given vectors,

= 6 + 5 – 21

= - 10

ii. and

Given Vectors :

1)

2)

3)

To Find :

Formulae :

1) Scalar Triple Product:

If

Then,

2) Determinant :

Answer :

For given vectors,

= 6 + 15 – 28

= - 7

iii. and

Given Vectors :

1)

2)

3)

To Find :

Formulae :

1) Scalar Triple Product:

If

Then,

2) Determinant :

Answer :

For given vectors,

= - 2 + 6

= 4