Arun
Last Activity: 7 Years ago
sin 10 + sin 20+ sin30 +........... + sin330 + sin340 + sin 350 +sin 360
sin 10 + sin 20+ sin30 +........... + sin(360 –30) + sin(360 –20) + sin(360 – 10)+ sin(360)
we know-
sin(360 – theta) = –sin (theta)
hence all the terms are cancelled out and sin 360 is remained
so answer will be
0 + sin 360 (sin 360 = 0)
0 + 0
0 (answer)
hence option B is correct