Mathematics · Trigonometry
A tower subtends angles α, 2α and 3α respectively at points A, B and C all lying on a horizontal line through the foot of the tower. The ratio AB/AC is equal to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1sin(2α)sin(α)
- 21 + 2cos(2α)2(1 + cos(2α))✓
- 32cos(2α)
- 4sin(3α)sin(2α)
Correct answer
1 + 2cos(2α)2(1 + cos(2α))
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