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How do I calculate e^-0.4 without a calculator manually?
in JEE exam no calculators or log books are allowed , but yet i need to do this calculation in one physics problem.

Pranava B , 8 Years ago
Grade 12
anser 1 Answers
Mayajyothi C J
Use the following equation to convert exp to log, the rest of the calculation will be easy then
e ^{x}= y
x=\log_{e}y
Example application:
e^{-0.4}=y
-0.4=\log_{e}y
-0.4=ln \left ( y )
Last Activity: 8 Years ago
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