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CBSE Class 10 Answered

SIR PLEASE PROVE
Asked by gunjansingh | 09 Dec, 2009, 09:52: PM
answered-by-expert Expert Answer

We have not understood the query that you have posted. We would request you to clarify   what need to be done in the expression sec θ - 1/ sec θ  +1 [sin  θ / 1+ cos θ ] 2   also  is thje highlighted 1 in multiplication???

 

Answered by | 10 Dec, 2009, 12:03: PM

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CBSE 10 - Maths
Two pillars are standing on either side of a 80 m wide road. Height of one pillar is 20 m more than the height of the other pillar. From a point on the road between the pillars, the angle of elevation of the higher pillar is 60°, whereas that of the other pillar is 30°. Find the position of the point between the pillars and the height of each pillar. (Use √3 = 1-73)
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