ACT Math 1.5 Trigonometry
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ACT Math: Trigonometry Drill 1, Problem 5. Can you simplify the expression?
| ACT Math | Trigonometry |
| ACT Mathematics | Trigonometry |
| Foreign Language | Arabic Subtitled Chinese Subtitled Korean Subtitled Spanish Subtitled |
| Geometry | Right Triangles and Trigonometry |
| Language | English Language |
| Product Type | ACT Math |
| Trigonometry | Trig graphs Use of trigonometric identities Values and properties of trigonometric functions |
Transcript
And sec alpha equals one over cos alpha. Now our fraction looks like this: one over
sin alpha ALL OVER one over cos alpha.
Now to simplify the sandwich, we multiply one over sin alpha by the reciprocal of one
over cos alpha to get cos alpha over sin alpha. And since we know that cos alpha over sin
alpha equals cotangent alpha...
...we can determine that the answer is B.
Now we are definitely going to chow down on this thing... as soon as we can get our tongue untied...