ACT Math: Trigonometry Drill 1, Problem 5. Can you simplify the expression?
|Foreign Language||Arabic Subtitled|
|Geometry||Right Triangles and Trigonometry|
|Product Type||ACT Math|
Use of trigonometric identities
Values and properties of trigonometric functions
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...