Question

find the value of e^x - e^-x/2​

Answer 1

Answer:

e^x + 1/e^x = 2

Multiplying through by LCM of denominators gives

(e^x)^2 + 1= 2e^x

Rearranging gives

(e^x)^2 - 2e^x +1 = 0

Solving this quadratic equation gives

e^x = 1

And this x = ln(1)

x = 0

Step-by-step explanation:

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Answer 2

Answer:

Given:

 E(x)=2

 then

 E(2x+3)=2(2)+3

 =7

Step-by-step explanation:

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