Can I distribute cotangent here??? cot(Arccot 3 + Arccot 7 + Arccot 15 + Arccot 21) Can you please show the solution???
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Originally Posted by maeca Can I distribute cotangent here??? cot(Arccot 3 + Arccot 7 + Arccot 15 + Arccot 21) Can you please show the solution??? nope you cannot distribute the cotangent here, you will need to use the double angle formula here (several times) first note that so your thing becomes can you finish this off ? Bobak
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