`(cos2Acos3A-cos2Acos7A+cosAcos10A)/(sin4Asin3A-sin2Asin5A+sin4Asin7A)=cot6Acot5A`

(cos2A cos3A-cos2A cos7A+cos A cos10A)/(sin4A sin3A-sin2A sin5A+sin4A sin7A)=cot6A*cot5A

Prove that: (cos2A\ cos3A-cos2Acos7A+cos10 A cos A)/(sin4A\ sin3A-sin2A sin5A+sin4Asin7A )=cot6A\ cot5A

Prove that: (cos 2A cos 3A-cos 2A cos 7A + cos A cos 10A)/(sin 4A sin 3A -sin 2A sin 5A + sin 4A sin 7A)= cot 6A cot 5A .

Prove that: (cos 2A cos 3A -cos 2A cos 7A + cos A cos 10A)/("sin" 4A sin 3A - sin 2A sin 5A + sin 4A sin 7A) = cot 6A cot 5A

Prove that (cosA+cos3A+cos5A+cos7A)/(sinA+sin3A+sin5A+sin7A)=cot4A

(cosA + cos3A + cos5A + cos7A)/(cosAcos2Acos4A)=

sin2A+2sin4A+sin6A=4cos^2Asin4A

Prove that ("cos"A+"cos"3A+"cos"5A+"cos"7A)/("sin"A+"sin"3A+"sin"5A+"sin"7A)="cot"4A

sin5A=5cos^4AsinA-10cos^2Asin^3A+sin^5A

Show that (cos8Acos5A-cos12Acos9A)/(sin8Acos5A+cos12Asin9A)=tan4A