CBSE BOARD X, asked by harsh16022005, 1 year ago

what is sin3X+cos3X anser it

Answers

Answered by Harshgupta123

1

Answer:

Explanation:

sin3x=3sinx-4sin^3x

cos3x=4cos^3x-3cosx

hence,

sin3x+cos3x=3sinx-4cos^3x + 4cos^3x-3cosx

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