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  • 23-05-2020
  • Mathematics
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Sin2x + cos3x expand the expression

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MathPhys
MathPhys MathPhys
  • 23-05-2020

Step-by-step explanation:

Use double and triple angle identities:

sin(2x) + cos(3x)

2 sin x cos x + 4 cos³x − 3 cos x

Answer Link

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