1.

Identify the numerical coefficients of terms (other than constants) in the following three expressions. (i) \[5-3{{t}^{2}},\] (ii) \[1+t+{{t}^{2}}+{{t}^{3}},\] (iii) \[x+2xy+3y\]

A.  \[\text{i-}-3,\,\text{ii}\,\text{-}\,1,1,1,\,iii\text{-}\,1,2,3\]
B.  \[\text{i}\,\text{-}\,\text{5},\,\text{ii}\,\text{-}\,1,1,\,iii\text{-}\,2,3\]
C.  \[\text{i}\,\text{-}\,8,\,\text{ii}\,\text{-}\,4,\,iii\text{-}\,6\]
D. None of the above
Answer» B.  \[\text{i}\,\text{-}\,\text{5},\,\text{ii}\,\text{-}\,1,1,\,iii\text{-}\,2,3\]


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