Question

Reduce:
M = 1 - 8Sen^2 xCos^2 x​

Answer 1

Verified answer

Respuesta:

[tex]M=cos(4x)[/tex]

Explicación paso a paso:

[tex]M=1-8sen^{2}x.cos^{2}x\\M=1-2.4 sen^{2}x.cos^{2}x\\M=1-2.(2senxcosx)^{2}\\M=1-2sen^{2}(2x)\\M=1-sen^{2}(2x)-sen^{2}(2x)\\M=cos^{2}(2x)-sen^{2} (2x) \\M=cos(4x)[/tex]