(a)

We have,

=

=

=

(b)

We have,

=

=

=

(c)

We have,

=

=

=

(d)

We have,

=

=

=

(e)

We have,

=

=

=

(f)

We have,

=

=

=

(g)

We have,

=

=

=

(h)

We have,

=

=

=

=

(i)

We have,

=

=

=

(j)

We have,

=

=

=

= 1

(k)

We have,

1 + 3

=

=

=

= 5

(l)

We have,

4 + 3

= +

=

=

=

(m)

We have,

=

=

(n)

We have,

=

=

=