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Mathematics
4 November, 03:57
Write 4 sin (3x) cos (2x) as a sum or difference
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Ayanna
4 November, 04:05
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2sin (x) + 2sin (5x)
Step-by-step explanation:
4sin (x) cos (2x)
=4sin (2x+x) cos (x+x) = 4[sin (2x) cos (x) + cos (2x) sin (x) ]
= 4sin (2x) cos (x) + 4sin (x) cos (2x)
= 4sin (x+x) cos (x) + 4sin (x) cos (x+x)
= 2sin (x) + 2sin (5x)
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