If (2x2−x−1)5=a0+a1x+a2x2..........a10x10 then a2+a4+a6+a8+a10 = – InterviewSolution

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1.	If (2x2−x−1)5=a0+a1x+a2x2..........a10x10 then a2+a4+a6+a8+a10 = __
Answer» If $(2 x^{2} - x - 1)^{5} = a_{0} + a_{1} x + a_{2} x^{2} . . . . . . . . . . a_{10} x^{10}$ then $a_{2} + a_{4} + a_{6} + a_{8} + a_{10}$ = __

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