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sin(60^(@)-theta)cos(30^(@)+theta)+cos(6...

sin(60^(@)-theta)cos(30^(@)+theta)+cos(60^(@)-theta)sin(30^(@)+theta)=1

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Prove that: sin(60^(@)-theta)cos(30^(@)+theta)+cos(60^(0)-theta)sin(30^(@)+theta)=1

Prove that: sin(60^0-theta)cos(30^0+theta)+cos(60^0-theta)sin(30^0+theta)=1.

Evaluate sin(30^(@)+theta)-cos(60^(@)-theta) .

Evaluate sin(30^(@)+theta)-cos(60^(@)-theta) .

sin(30^o +theta) +cos(60^o +theta) :

What is (cos^(2)(45^(@)+theta)+cos^(2)(45^(@)-theta))/(tan(60^(@)+theta)tan(30^(@)-theta)) equal to ?

cos theta - cos (60^(@) + theta ) - cos(60^(@) - theta )=

cos theta cos (60^(@) + theta ) * cos (60^(@) - theta ) =

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sin (60^(@) + theta) - sin ( 60^(@) - theta ) = sin theta.