What is sin(4pix)*cos(4pix) ?

The solution to sin(4pix)*cos(4pix) is (sin(8pix))/2

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simplify sin(4pix)*cos(4pix)

simplify

sin (4 π x) \cdot cos (4 π x)

\frac{sin ( 8 π x )}{2}

Solution steps

sin (4 π x) cos (4 π x)

Rewrite using trig identities

= \frac{sin ( 8 x π )}{2}

7 cos (100 t - \frac{π}{2})

\frac{sin ( 2 π x + 2 π x )}{4}

cot (- a)

cos (arctan (a))

What is sin(4pix)*cos(4pix) ?
The solution to sin(4pix)*cos(4pix) is (sin(8pix))/2