Mathematics · Trigonometry

The value of sin(π18) + sin(π9) + sin(2π9) + sin(5π18) is given by:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1sin(7π18) + sin(4π9)✓
21
3cos(π6) + cos(3π7)
4cos(π9) + sin(π9)

Correct answer

sin(7π18) + sin(4π9)

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The value of sin(π18) + sin(π9) + sin(2π9) + sin(5π18) is given by:

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The value of sin(π18) + sin(π9) + sin(2π9) + sin(5π18) is given by:

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