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khan razia

· started a discussion

· 1 Months ago

solution (Question: 394518.0 )

plz provide solution

Question:

The angle of elevation of the top of a TV tower from three points A, B and C in a straight line through the foot of the tower are α, 2α and 3α, respectively. If AB = x, then the height of the tower is –

Options:
A)

x cos α

B)

x sin2 α

C)

x sin 3 α

D)

x tan α

Solution:

Ans: (b)


Abhishek Goyal

· commented

· 1 Months ago

Sin 2 @ = H/x
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