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" Show that "cos38^(@)cos52^(@)-sin38^(@...

" Show that "cos38^(@)cos52^(@)-sin38^(@)sin52^(@)=0

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Show that : cos 38^@ cos 52^@-sin 38^@ sin 52^@ = 0

The value of cos38^(@)cos52^(@)-sin38^(@)sin52^(@) is :

Show that cos 36^(@) cos 54 ^(@) -sin 36^(@) sin 54^(@) =0

Show that cos 36^(@) cos 54 ^(@) -sin 36^(@) sin 54^(@) =0

Show that cos 36^(@) cos 54 ^(@) -sin 36^(@) sin 54^(@) =0

Show that cos 36^(@) cos 54 ^(@) -sin 36^(@) sin 54^(@) =0

Show that cos 36^(@) cos 54 ^(@) -sin 36^(@) sin 54^(@) =0

Show that(ii) Cos38^@Cos52^@-Sin38^@Sin52^@=0

Show that : cos 38 ^@ cos 52 ^@ - sin 38^@ sin 52 ^@ = 0

Show that : cos 36^(@) cos 54^(@) - sin 36^(@) sin 54^(@) = 0 .