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Question : 31 of 160
Marks:
+1,
-0
Solution:
(102)4=(100+2)4 =‌4C0(100)4+1+‌4C1(100)3⋅21 +‌4C2(100)2⋅22+‌4C3(100)1⋅23 +4C4(100)024 =(100)4+4(100)3⋅2+6(100)2⋅4+4(100)8+1⋅1⋅16
=100000000+8000000+240000+3200+16
=108243216
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