Question

Solve the 11th sum. Cos^2 2x

Answer 1

cos

2

(

2

x

)

d

x

=

x

2

+

1

8

sin

(

4

x

)

+

C

Hope this help

Answer 2

cos
2
(
2
x
)
d
x
=
x
2
+
1
8
sin
(
4
x
)
+
C
Hope this help