Solution(cont’d)
For a=0, b=L we have L/L - (1/2?)[sin(2?)-sin(0)] = 1
(a) a=0, b=L/3 1/3 - (1/2?)[sin(2?/3)-sin(0)]= .195
(b) a=L/3, b=2L/3 1/3 - (1/2?)[sin(4?/3)-sin(2?/3)]= .61
(c) a=2L/3, b=L 1/3 - (1/2?)[sin(2?)-sin(4?/3)]= .195
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