Mathematics · Trigonometry

Find the value of the trigonometric expression: cos(9x) + cos(7x)sin(9x) - sin(7x)

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1cos(x)
2tan(x)
3sin(x)
4cot(x)✓

Correct answer

cot(x)

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Find the value of the trigonometric expression: cos(9x) + cos(7x)sin(9x) - sin(7x)

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Find the value of the trigonometric expression: cos(9x) + cos(7x)sin(9x) - sin(7x)

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