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" Affart "(1)/(81)" for (Prove that) "cot theta+cot(60^(@)+theta)+cot(120^(@)+theta)=3cot3 theta

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Prove that cot theta + cot (60^(@) theta) + cot (120^(@) + theta) = 3 cot 3 theta .

Show that cottheta+cot(240^(@)+theta)+cot(300^(@)+theta)=3 cot3theta

Prove that, cot theta - tan theta = 2cot 2 theta

Prove that cot theta-tan theta=2cot 2 theta .

Prove that cot theta-tan theta=2cot 2 theta .

Prove that cot theta-tan theta=2cot 2 theta .

Prove that : cot theta-tan theta=2cot2 theta

Prove that cot((theta)/(2))-tan((theta)/(2))=2cot theta

Prove that cot(theta/2)-tan(theta/2)=2cot theta

Prove that : (tan^(2)theta)/(1+tan^(2)theta)+(cot^(2)theta)/(1+cot^(2)theta)=1