The value of (coso +isino)
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Answered by
1
Answer:
using the sum of series of sine
∑
m=1
n
sin(a+k.d)=
sin
2
d
sin
2
n×d
×sin(
2
2a+(n−1).d
)
Given,
∑
m=1
15
Im(z
2m−1
)→
sinθ+sin3θ+sin5θ+.......sin29θ=
→
sin
2
2θ
sin
2
15×2θ
×sin(
2
2θ+(14×2θ)
)
→
sinθ
sin
2
15θ
put θ=2
∘
→
sin2
∘
sin
2
30
∘
→
4.sin2
∘
1
Answered by
0
Answer:
nsjaoa ajiavaj ajaogaba. ajja
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