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5 February, 14:16

The solution of the equation 2^x=49 is approximately 5.61. true or false?

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Answers (2)
  1. 5 February, 14:32
    0
    False.

    answer : + 7 or - 7.
  2. 5 February, 14:45
    0
    Hello:

    2^x=49

    ln (2^x) = ln (49)

    xln (2) = ln (49)

    x = ln (49) / ln (2)

    but : ln (49) ≃3.89 and ln (2) ≃0.69

    x ≃ 5.63
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