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1. 4x+41-x=4

  • A. 14
  • B. 14
  • C. 14
  • D. 14

Answer: Option C

Explanation:

4^x+4^1-x=4

d/dx[4^x+4^1-x]=0

4^x.ln4-4^1-x.ln4=0

4^x.ln4=4^1-x.ln4

4^x=4^1-x

X=1-x

2x=1

X=1/2

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