if
[tex] \\ (1 + x + {x}^{2} ) ^{n} = a_{0} + a_{1}x + a_{2} {x}^{2} ... + a_{2n} {x}^{2n} \\ [/tex]
Find
[tex] \\ 1.) \: \: \: a_{0} ^{2} - {a_{1}}^{2} + {a_{2}}^{2} - {a_{3}}^{2} + ... \\ [/tex]
[tex] \\ 2.) \: \: \: a_{0}a_{2} - a_{1}a_{3} + a_{2}a_{4} + ... \\ [/tex]
[tex] \\ 3.) \: \: \: a_{0}a_{3} - a_{1}a_{4} + a_{2}a_{5} + ... \\ [/tex]
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Answer is in the attachment please mark me as brainlists and follow me