Homework SourseWrite the following trigonometric expression as a single tri
Write the following trigonometric expression as a single trigonometric function. 1 - 2sin²4x
Write the following trigonometric expression as a single trigonometric function. 1 - 2sin²4x
Write the following trigonometric expression as a single trigonometric function. 1 - 2sin²4x
Solution
1-2sin24x
The double angle formula of cosine is
Cos 2x=1-2sin2x
Using this formula we get
1-2sin2 (4x) = cos 2(4x) =cos 8x
