सिद्ध कीजिए कि:`(sin48^(@))/(cos42^(@))+(cos48^(@))/(sin42^(@))=2.`

(sin9^(@)-cos9^(@))/(sin48^(@)sin 12^(@))=

sin48^(@)sec42^(@)+cos48^(@)csc42^(@)=

sin42^(@)sec48^(@)+cos42^(@)cos ec48^(@)=2

Evaluate: cos48^(@)-sin42^(@)

Evalute (c ) cos48^(@)-sin42^(@)

Evaluate cos 48^(@) cos 42^(@) - sin48^(@) sin 42^(@)

Evaluate cos 48^(@) cos 42^(@) - sin48^(@) sin 42^(@)

cos48^(@)cos23^(@)cos ec42^(@)cos ec67^(@)=1

cos 48^@ - sin 42 ^@ = ?

Evaluate : (sec 42^(@))/( cosec 48^(@)) + ( 3 tan 50 ^(@))/( cot 40 ^(@)) - ( 2 cos 43 ^(@))/( sin 47^(@))