UPSKILL MATH PLUS
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Difficulty level:
00:15:00
| 1. | Express in terms of the ratio 'sec' | 2 m. |
| 2. | Express the given ratios in terms of trigonometric ratios of angles between 0° and 45° | 2 m. |
| 3. | Simplify and choose the equivalent expressions | 4 m. |
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