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निम्नलिखित के मान ज्ञात कीजिए - (i...

निम्नलिखित के मान ज्ञात कीजिए -
(i) ` sin 48^(@) cos 42^(@) + cos 48^(@) sin 42^(@)`
(ii) ` cos 72^(@) cos 12^(@) + sin 72^(@) sin 12^(@)`
(iii) ` (tan 100^(@)+tan35^(@))/(1- tan 100^(@) tan 35^(@))`
(iv) ` sin A cos (A - B) - cos A sin (A-B)`

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(sin48^(@))/(cos42^(@))+(cos48^(@))/(sin42^(@))=2

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

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

Evaluate: i) sin48^(@)cos42^(@)+cos48^(@)sin42^(@) ii) cos72^(@)cos12^(@)+sin72^(@)sin12^(@) ii) cos72^(@)cos12^(@)+sin72^(@)sin12^(@) iii) (tan100^(@)+tan35^(@))/(1-tan100^(@)tan35^(@)) iv) sinAcos(A-B)-cosAsin(A-B)

Evaluate: i) sin48^(@)cos42^(@)+cos48^(@)sin42^(@) ii) cos72^(@)cos12^(@)+sin72^(@)sin12^(@) ii) cos72^(@)cos12^(@)+sin72^(@)sin12^(@) iii) (tan100^(@)+tan35^(@))/(1-tan100^(@)tan35^(@)) iv) sinAcos(A-B)-cosAsin(A-B)

((sin48^(@))/(cos42^(@)))+((cos48^(@))/(sin42^(@)))=2

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

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

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

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