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Complete Conditional Statements in Python in 5 min | Python Conditions
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![Verify formula (5). [Hint: Use the identity 2 cosA cosB=cos(A+B)+cos(A-B) . ]](http://i.ytimg.com/vi/nmYctuFJEnw/mqdefault.jpg "Verify formula (5). [Hint: Use the identity 2 cosA cosB=cos(A+B)+cos(A-B) . ]")
