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ICSE Class 7 Answered

wite the following in roster form and write the cardinal number of each:  C={x:xn2,n is equal to N,10<N<16}
Asked by Akash Deep | 28 Jul, 2017, 07:03: PM
answered-by-expert Expert Answer
begin mathsize 16px style The space question space should space be straight C equals left curly bracket straight x space colon space straight x equals straight n squared comma space straight n space element of space straight N comma space 10 space less than space straight n space less than space 16 right curly bracket Natural space numbers space between space 10 space and space 16 space are space 11 comma space 12 comma space 13 comma space 14 comma space 15 The space squares space of space these space numbers space are space 121 comma space 144 comma space 169 comma space 196 comma space 225 therefore space Roster space form equals straight c equals left curly bracket 121 comma space 144 comma space 169 comma space 196 comma space 225 right curly bracket Cardinal space number equals number space of space elements space in space straight a space set equals straight n left parenthesis straight C right parenthesis equals 5 end style
Answered by Rashmi Khot | 31 Jul, 2017, 09:54: AM
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ICSE 7 - Maths
{x:x € N, 1 <= x <= 10}
Asked by srmsuchi | 10 Apr, 2019, 11:37: AM
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