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sin105^(@)+cos105^(@)=cos45^(@)...

sin105^(@)+cos105^(@)=cos45^(@)

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sin15^(@)+cos105^(@)=?

Prove that: s in105^(@)+cos105^(0)=cos45^(@)

sin75^(@)-sin15^(@)=cos105^(@)+cos15^(@)

Prove that: sin 105^@+cos 105^@=cos 45^@

Prove that sin 105^(@) + cos 105^(@) = cos 45^(@)

sin 105^(@) + cos 105^(@) = cos theta, then theta =

cos15^(@)+cos105^(@)=

Find the value of the following: (sin90^(@)+cos60^(@)+cos45^(@))xx(sin30^(@)+cos0^(@)-cos45^(@))

2sin45^(@)cos45^(@)