Chapter 26 SCALAR TRIPLE PRODUCT

Access Answers for Rd Sharma Solution Class 12 Maths Chapter 26

EXERCISE 26.1

Q1.i

Solution:

ii.

Solution:

Q2.i

Solution:

We know that,

Now let us simplify we get,

Hence,

ii.

Solution:

Q3.i

Solution:

We know that the volume of a parallelepiped whose three adjacent edges is

ii.

Solution:

iii.

Solution:

Let us consider,

iv.

Solution:

Q4.i

Solution:

ii.

Solution:

We know that three vectors
are coplanar if their scalar triple product is zero. i.e.,

iii.

Solution:

We know that three vectors
are coplanar if their scalar triple product is zero. i.e.,

Q5.i

Solution:

ii.

Solution:

iii.

Solution:

iv.

Solution: