1.

If \[x+y=2\]and \[x-y=1,\] then:

A.  \[P(x)={{a}_{0}}+{{a}_{1}}x+{{a}_{2}}{{x}^{2}}+.....+{{a}_{n}}{{x}^{n}}\]   
B.  \[{{a}_{0}},{{a}_{1}},{{a}_{2}},.....,{{a}_{n}}\]
C.  \[{{a}_{0}}+{{a}_{1}}x+{{a}_{2}}{{x}^{2}}+.....+{{a}_{n}}{{x}^{n}}\]       
D.  \[{{a}_{0}},{{a}_{1}},{{a}_{2}}......{{a}_{n}}\]
Answer» B.  \[{{a}_{0}},{{a}_{1}},{{a}_{2}},.....,{{a}_{n}}\]


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