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AMO 2022 - Secondary 4 (Grade 10) Question 2

AMO · AMO 2022 - Secondary 4 (Grade 10)

Question 2

If $f(x)=x^3(a\cdot2^x-2^{-x})$ is even, find $a$.

Question illustration
  1. $1$
  2. $2$
  3. $3$
  4. $4$
  5. $5$