If T0,T1,T2,..................Tn represent the terms in the expansion – InterviewSolution

1.	If T0,T1,T2,..................Tn represent the terms in the expansion of (x+a)n, then the value of (T0−T2+T4−T6+.................)2 + (T1−T3+T5−.................)2 is
Answer» If $T_{0}, T_{1}, T_{2}, . . . . . . . . . . . . . . . . . . T_{n}$ represent the terms in the expansion of $(x + a)^{n}$ , then the value of $(T_{0} - T_{2} + T_{4} - T_{6} + . . . . . . . . . . . . . . . . .)^{2}$ + $(T_{1} - T_{3} + T_{5} - . . . . . . . . . . . . . . . . .)^{2}$ is

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