Engineering Board Exam Reviewer · Trigonometric Equations · hard
Find the smallest positive solution of 4x- 4x= 12.
- 30°
- 120°
- 60°
- 15°
Answer
C. 60°
Solution
4x- 4x=( 2x- 2x)(1)=- 2x= 12 2x=- 12. 2x=120° or 240°, so the smallest x is 60°.
More Trigonometric Equations questions
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