- #1

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**Differential Equations PLEASE!!**

**

**problem solved****

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- Thread starter deteam
- Start date

- #1

- 24

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**

Last edited:

- #2

nicksauce

Science Advisor

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It seems that you didn't multiply tan(x) with the -cos(x) term.

- #3

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It seems that you didn't multiply tan(x) with the -cos(x) term.

i turned tan(x) into sinx/cosx and canceled out the cosx, and was left with

-sin^2 x + cos^2 x + sinx + sin^2 x -cosx = cos^2 x

any ideas?

- #4

nicksauce

Science Advisor

Homework Helper

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Like I said, you wrote:

-sin^2 x + cos^2 x +sinx +[tan x] sinxcosx -cosx = cos^2x

When it should be:

-sin^2 x + cos^2 x +sinx +[tan x]( sinxcosx -cosx) = cos^2x

- #5

- 24

- 0

-sin^2 x + cos^2 x +sinx +[tan x] sinxcosx -cosx = cos^2x

When it should be:

-sin^2 x + cos^2 x +sinx +[tan x]( sinxcosx -cosx) = cos^2x

aww, such a simple mistake, thanks a lot :)

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