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CBSE Class 10 Answered

A vertical tower stands on a horizontal plane & is surmounted by a vertical flagstaff of height h. At a point on the plane the angle of elevation of the bottom & the top of the flagstaff are respectively alpha space & beta. The height of the tower is:
(a)fraction numerator h tan alpha over denominator tan beta minus tan alpha end fraction                     (b)fraction numerator h c o t alpha over denominator c o t beta minus c o t alpha end fraction
(c)1                                                (d)  fraction numerator sin alpha over denominator cos beta end fraction
Asked by araima2001 | 30 Sep, 2015, 06:02: PM
answered-by-expert Expert Answer
H e n c e space t h e space c o r r e c t space o p t i o n space i s space left parenthesis a right parenthesis.
Answered by Vimala Ramamurthy | 01 Oct, 2015, 09:35: AM

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