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CBSE
MATHEMATICS · Single correct · CBSE · Mathematics · Integrals · Integrals
Problem
Evaluate
∫
cos
2
2
x
d
x
\displaystyle\int \cos^2 2x\,dx
∫
cos
2
2
x
d
x
. (a)
x
+
sin
4
x
8
+
C
x+\dfrac{\sin 4x}{8}+C
x
+
8
sin
4
x
+
C
(b)
x
+
sin
4
x
4
+
C
x+\dfrac{\sin 4x}{4}+C
x
+
4
sin
4
x
+
C
(c)
x
2
+
sin
4
x
8
+
C
\dfrac{x}{2}+\dfrac{\sin 4x}{8}+C
2
x
+
8
sin
4
x
+
C
(d)
x
2
+
sin
4
x
4
+
C
\dfrac{x}{2}+\dfrac{\sin 4x}{4}+C
2
x
+
4
sin
4
x
+
C
Related theory
Trigonometric Identities
Trigonometric Functions
Integration Techniques
Standard trigonometric integrals
Integration using trigonometric identities
Integrals
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