The angle of an elevation of the top of TV tower from 3 pts A, B, and C in a straight line through the foot of tower are a, 2a, 3a respectively.  If AB= x then the height of tower ?A. xcosAB. xsin2AC. xsin3AD. xtanA

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ram

  • Oct 27th, 2005
 

Ans is : xtanA

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