A tower subtends angles `alpha,2alpha,3alpha` respectively, at point `A , B ,a n dC` all lying on a horizontal line through the foot of the tower. Prove that `(A B)/(B C)=1+2cos2alphadot`

A tower subtends angles alpha,2 alpha,3 alpha respectively,at point A,B, and C all lying on a horizontal line through the foot of the tower. Prove that (AB)/(BC)=1+2cos2 alpha.

A tower subtends angles alpha,2 alpha, 3 alpha respectively at points A,B and C all lying on a horizontal line through the foot of the tower, Then (AB)/(BC)=

A tower subtends angles, alpha, 2 alpha, 3 alpha respectively at points A, B and C all lying on a horizontal line through the foot of the tower. If 0 lt alpha lt (pi)/(6) and (AB)/(BC) = 8 cos^(2) alpha - 2k , then k = ____________

A tower subtends angles alpha, 2alpha, 3alpha at A,B and C all lying on the horizontal line through the foot of the tower the AB/BC =

A tower subtends angles alpha, 2alpha and 3alpha respectively at points, A, B and C (all points lying on the same side on a horizontal line through the foot of the tower), then the value of (AB)/(BC) is equal to

A tower subtends angle theta, 2theta, 3theta at the three points A,B and C respectively lying on a horizontal line through the foot of the tower. Then AB/BC is equal to

A tower subtends angle theta, 2theta, 3theta at the three points A,B and C respectively lying on a horizontal line through the foot of the tower. Then AB/BC is equal to

If a tower subtends angles theta, 2 theta and 3 theta at three points A,B,and C respectively, lying on the same side of a horizontal line through the foot of the tower, show that (AB)/(BC) (cot theta- cot 2 theta)/(cot 2 theta - cot 3 theta).

If a tower subtends angles theta, 2 theta and 3 theta at three points A,B,and C respectively, lying on the same side of a horizontal line through the foot of the tower, show that (AB)/(BC) (cot theta- cot 2 theta)/(cot 2 theta - cot 3 theta).

If a tower subtends angles theta, 2 theta and 3 theta at three points A,B,and C respectively, lying on the same side of a horizontal line through the foot of the tower, show that (AB)/(BC) (cot theta- cot 2 theta)/(cot 2 theta - cot 3 theta).