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## Homework Statement

Prove that tanx + 1 = secx.

## Homework Equations

sinx/cosx + 1 = 1/cosx

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- Thread starter minajo
- Start date

- #1

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Prove that tanx + 1 = secx.

sinx/cosx + 1 = 1/cosx

- #2

NascentOxygen

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## Homework Statement

Prove that tanx + 1 = secx.

Have you tried substituting a value,

It will be rather difficult to prove that it's an identity if it really isn't.

- #3

eumyang

Homework Helper

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## Homework Statement

Prove that tanx + 1 = secx.

## Homework Equations

sinx/cosx + 1 = 1/cosx

## The Attempt at a Solution

Check wherever you got this problem from to see if you copied it correctly. It looks like something is missing in the original problem.

- #4

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Don't you mean tan^{2}x + 1 = sec^{2}x?

- #5

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- #6

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start with

sin(x)^2+cos(x)^2=1

Do you have any clue or idea were to go from here?

- #7

HallsofIvy

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You

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