Answer:
1. option B is correct i.e.,
2. option D is correct i.e., .
3. option B is correct i.e., .
Step-by-step explanation:
1. Since the given equation is:
As we know that
So, the given equation can be represented as:
2. Given equation is:
As we know that
so the given equation can be represented as:
.
3. Given equation is:
by using the properties ,
and
=
=
=
=
= .
which is option B.