Trigonometric Identities Worksheet With Answers
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2513-1 Trigonometric Identities
Find the exact value of each expression if 0 ° < θ < 90 °
1. If cot θ = 2, find tan θ.
SOLUTION:
2. If
, find cos θ.
SOLUTION:
Since
is in the first quadrant,
is positive.
Thus,
.
3. If
, find sin θ.
SOLUTION:
Since
is in the first quadrant,
is positive.
Thus,
.
4. If
, find csc θ.
SOLUTION:
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