namneetkhattra
namneetkhattra
02-12-2019
Mathematics
contestada
plz anybody help me to solve this
Respuesta :
harshapuranik179
harshapuranik179
02-12-2019
Answer:
15) c) n(n+1)/√2
16) a) 2500
17) d) none of these
18) b)21
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