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sin 75^o - sin 15^o = cos 105^o + cos ...

` sin 75^o - sin 15^o = cos 105^o + cos 15 ^o `

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Prove that sin 75^(@) - sin 15^(@) = cos 105^(@) + cos 15^(@)

Prove that sin75^o -sin15^o =cos105^o +cos15^o

sin15^o +cos15^o is:

( sin 75^(@) - sin 15^(@))/( cos 15^(@) - cos 75^(@))=

sin 15^(@) + cos 105 ^(@) =

sin 15^(@) + cos 105 ^(@) = ............ A) 0 B) 2 sin 15 ^(@) C) cos 15^(@) + sin 15^(@) D) sin 15^(@) - cos 15^(@)

Simplify (sin 75^(@)-sin 15^(@))/(cos 75^(@)+cos 15^(@))

sin15^@+cos105^@=