[" 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=" [EAMCET "],[2003]]

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,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,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,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,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 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 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

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 =