1.

A pole 10 m high stands on a tower 30 m. high. The angle of elevation of the top of the pole at a point A on the ground in 45^(@) and the pole subtends an angle alpha at the same point A then alpha is equal to (with each side equal to 100 m.)

Answer»

`COT^(-1) (1//7)`
`cot^(-1) 7`
`COS^(-1) (1//7)`
`SIN^(-1) (1//7)`

Answer :B


Discussion

No Comment Found

Related InterviewSolutions