Questions
If then the value of
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a
-1
b
0
c
1
d
48
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Correct option is C
Putting x = i, we get1+i+i248=a0+a1i+a2i2+…+a98i96⇒ i48=a0−a2+a4−…+ia1−a3+…Equating the real parts we geta0−a2+a4−a6+…+a96=1Similar Questions
If the coefficients of P th, ( p + 1)th and (p + 2)th terms in the expansion of (1 + x)n are in AP, then
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