Engineering Board Exam Reviewer · Trigonometric Identities · medium
If A= 35 and A lies in Quadrant II, find 2A.
- 24/25
- - 24/25
- - 12/25
- - 7/25
Answer
B. - 24/25
Solution
In Quadrant II, A=- 45. 2A=2 A A=2· 35·≤ft(- 45 )=-24/25.
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