(12 1)(12 2)/2
(13)(14)/2
182/2
91
Written on Dec. 6, 2017, 7 a.m.
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Answer of this question
Question asked on teachoo
Akhil Akki(n 1)(n 2)/2
(12 1)(12 2)/2
(13)(14)/2
182/2
91
Comment
Written on Dec. 6, 2017, 7 a.m.
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