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Two men on either side of a temple of 30 meters high observe its top at the angles of elevation `alpha` and `beta`? respectively. (as shown in the figure above). The distance between the two men is `40sqrt(3)` meters and the distance between the first person A and the temple is`30sqrt(3)` meters. Based on the above information answer the following:

Domain and Range of `cos^(-1)x=`

A

`(-1,1),(0,pi)`

B

`[-1,1],(0,pi)`

C

`[-1,1],[0,pi]`

D

`(-1,1),[-(pi)/2,(pi)/2]`

Text Solution

Verified by Experts

The correct Answer is:
C
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