[" fires anivic fon: "],[" 3.(a) "(sin A)/(1+cos A)=tan(A)/(2)]

(sin A+sin3A)/(cos A+cos3A)=tan2A

(sin A + sin2A) / (1 + cos A + cos2A) = tan A

Prove that (sin A+sin 2A)/(1+cos A +cos 2A)=tan A

(1 + sin2A) / (cos2A) = (cos A + sin A) / (cos A-sin A) = tan ((pi) / (4) +1)

Prove the following identities: (cos A)/(1-sin A)+(sin A)/(1-cos A)+1=(sin A cos A)/((1-sin A)(1-cos A))((1+cot A+tan A)(sin A-cos A)/(sec^(3)A-cos ec^(3)A)=sin^(2)A cos^(2)A

prove that (sin A-2sin^(3)A)/(2cos^(3)A-cos A)=tan A

sin[cos^(-1)(3/5)+tan^(-1)2]=

(1 + tan A) / (1-tan A) = (cos2A) / (1-sin2A)

(cos2A) / (1-sin2A) = (1 + tan A) / (1-tan A)

If 5tan A=3 then (5sin A-2cos A)/(sin A+2cos A) is