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Ambarish Gupta

· started a discussion

· 1 Months ago

short cut (Question: 115780.0 )

else we can take alpha=30 degree and it will resolve the questions within few seconds

Question:
The angle of elevation of the top of a TV tower from three points A, B, C in a straight line through the foot of the tower are \(\alpha\), 2 \(\alpha\) and 3\(\alpha\) respectively. If AB = x, then the height of the tower is : 
Options:
A) x cos\(\alpha\)
B) x sin 2\(\alpha\)
C) x sin 3\(\alpha\)
D) x tan \(\alpha\)
Solution:
Ans: (b)


Knowledge Expert

· commented

· 1 Months ago

Dear Student,
Yes you can solve using shortcut.

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