Question: In Problems 3450, establish each identity. sin (20) + sin(40) cos (20)+cos (40) tan (30)
In Problems 34–50, establish each identity.![]()
sin (20) + sin(40) cos (20)+cos (40) tan (30)
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To establish the identity sin2 sin4 cos2 cos4 tan3 we can use trigonometric identities and algebraic ... View full answer
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