Question

x+1=e^x the question is solve?

Answer 1

You can't solve this problem exactly. You can do 2 things (1) guess the solution. (2) use numerical approximation. (3) graph x+1 and e^x and find where the 2 curves intersect.

It happens that's this equation is simple to solve by guessing.

Answer 2

as an infinite sum: e^x = 1 + x + (1/2!)*x^2 + (1/3!)*x^3 + ....
x + 1 = 1 + x + (1/2!)*x^2 + (1/3!)*x^3 + ...
0 = (1/2!)*x^2 + (1/3!)*x^3 + ....
x^2 * ( (1/2!) + (1/3!)*x + (1/4!)*x^2 + ...) = 0
Giving x = 0,

using Newton Method we get:
x(n+1) = x(n) -1 + x(n) / (e^x(n) -1)
from which we might be able to form a proof that x =0 is the only solution

Answer 3

As uweddie said, graph them and see where they intersect.

Answer 4

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Answer 5

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Answer 6

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Answer 7

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Answer 8

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Answer 9

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Answer 10

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Answer 11

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Answer 12

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Answer 13

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Answer 14

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Answer 15

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Answer 16

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Answer 17

Question 2 Unsaved
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Answer 18

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Answer 19

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Answer 20

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Answer 21

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Answer 22

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Answer 23

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