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## Main Question or Discussion Point

hi,

can anyone tell me what is the meaning of number e,i mean how it is discovered ?why derivative and antiderivative of this function same?i know it is very practical property of it but where did we get this number? and another thing eulers formula, which is

e^(i*pi)+1=0,

i also cant understand this equation. which comes from e^(i*pi)=sinx+i*cosx. where did we get this formula also?

can anyone tell me what is the meaning of number e,i mean how it is discovered ?why derivative and antiderivative of this function same?i know it is very practical property of it but where did we get this number? and another thing eulers formula, which is

e^(i*pi)+1=0,

i also cant understand this equation. which comes from e^(i*pi)=sinx+i*cosx. where did we get this formula also?

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