If `sinA+sinB=sqrt3(cosB-cosA),then sin3A+sin3B=`

i) If sinA+sinB=sqrt(3)(cosB-cosA) , prove that: sin3A+sin3B=0 ii) If A,B and C are in arithmetic progression, then prove that: cotB=(sinA-sinc)/(cosC-cosA)

If sinA+sinB=C,&cosA+cosB=D , then sin(A+B)=?

sinA+sinB= r3 (cosB−cosA). Find the value of sin3A+sin3B

If sinA+sinB=a and cosA+cosB=b,then cos(A+B)

If sinA+sinB=a and cosA+cosB=b,then cos(A+B)

sin(A-B)=sinA cos B-cosA sinB

If sinA+sinB=c,cosA+cosB=D, then the value of sin(A+B)=

If sinA+sinB=l and cosA-cosA-cosB=m , then cos(A-B)=

Prove the following identities: tan^2A-tan^2B=(cos^2B-cos^2A)/(cos^2Bcos^2A)=(sin^2A-sin^2B)/(cos^2Acos^2B) (sinA-sinB)/(cosA+cosB)+(cosA-cosB)/(sinA+sinB)=0

If sinA+cosB=a and sinB+cosA=b then sin(A+B)=