A dip needle lies initially in the ma...

A dip needle lies initially in the magnetic meridian when it shows an angle of dip `theta` at a place.The dip circle is rotated throught an angle x in the horizontal plane and then it shows an angle of dip `theta` .Then `(tantheta)/(tan theta)` is

`cos alpha `

`1//sin alpha `

`1//tan alpha `

`1//cos alpha `

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