- #1

chwala

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## Homework Statement

Show that

## {(tan φ+sec φ-1)/(tan φ-sec φ+1)}≡ {(1+sin φ)/cos φ}##[/B]

## Homework Equations

## The Attempt at a Solution

## (sin φ+1-cos φ)/(sin φ+cos φ-1)##[/B]