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1. a2

  • A. 3
  • B. 3
  • C. 3
  • D. 3

Answer: Option A

Explanation:

a^2-4a+3=0

a^2-3a-a+3=0

a(a-3)-1(a-3)=0

(a-3)(a-1)=0

হয়, a-3=0 অথবা a-1=0

a=3, a=1


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