sinα+sinβ+sin gama - sin(α+b+gama)=4sin(α+b) /2.sin (β+gama) /2.sin(α+gama)/2

sinα+sinβ+sin gama - sin(α+b+gama)=4sin(α+b) /2.sin (β+gama) /2.s

1.	sinα+sinβ+sin gama - sin(α+b+gama)=4sin(α+b) /2.sin (β+gama) /2.sin(α+gama)/2
Answer» Tumhe iska answer RS AGARWAL me trignometry chap ke examples me mil jayega