Find bn when we have to find the half range sine series of the functi – McqOptions

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1.	Find bn when we have to find the half range sine series of the function x2 in the interval 0 to 3.
A.	-18 \( \frac{cos(nπ)}{nπ} \)
B.	18 \( \frac{cos(nπ)}{nπ} \)
C.	-18 \( \frac{cos(n \pi⁄2)}{nπ} \)
D.	18 \( \frac{cos(n \pi⁄2)}{nπ} \)
Answer» B. 18 \( \frac{cos(nπ)}{nπ} \)

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