[" 7."(sin^(1)A-sin^(1)B)/(sin A cos A-sin B cos B)=tan(A+B)],[" sin0"+sin2 theta]

(sin ^ (2) A-sin ^ (2) B) / (sin A cos A-sin B cos B) = tan (A + B)

(sin^(2)A-sin^(2)B)/(sin A cos A-sin B cos B) is equal to (a) sin A cos A-sin B cos Btan(A-B)(b)tan(A+B)cot(A-B)(d)cot(A+B)

(sin A + sin B) / (cos A + cos B) = tan ((A + B) / (2))

(sin(A+B)+cos A-sin(A-B))/(cos(A-B)+sin A-cos(A+B))=

Prove that (sin A-sin B)/(cos A+ cos B) = "tan" (A-B)/2

Prove that: (sin A-sin B)/(cos A+cos B)=tan((A-B)/2)

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

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

If : A+B+C=pi, "then"" "sin ^(2) A +sin^(2)B - sin ^(2)C= A) 2 cos A * cos B * sin C B) 2 cos B * cos C * sin A C) 2 sin A * sin B * cos C D) 2 sin B * sin C * cos A