No, for example if A = Pi/3. Then sin3A = sin pi = 0, but sinA = sin Pi/3 = 1/2. So for A = Pi/3, the sum is 1/2, not zero. It can't be proved because the statement is false. For example if A = Pi/3. Then sin3A = sin pi = 0, but sinA = sin Pi/3 = 1/2. So for A = Pi/3, the sum is 1/2, not zero.
7
0 + 0 = 0
yes
46
No Pendejoss:)
999
1
0 plus 501-60-600 plus 10 is equal to -149
-10 plus 10 equals 0.
0.
Yes.
Yes.