1.

A chimney leans towards north. At equal distance due north and south of it in a horizontal plalne, The elevation of the tops are alpha and beta respecctively. The inclination of the top of the chimney to the vertical is

Answer»

`TAN^(-1)[(SIN(alpha-beta))/(sin alphasinbeta)]`
`Tan^(-1)[(2sin(alpha-beta))/(sin alphasinbeta)]`
`Tan^(-1)[(sin(alpha-beta))/(2sin alphasinbeta)]`
`Tan^(-1)[(sin(alpha-beta))/(2cosalphacosbeta)]`

ANSWER :C


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