Simplifying Trigonometric Expressions using Sine and Cosine

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Mathematics
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1st - 6th Grade
•
Hard
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3 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
How do you solve for x when given that sine of x plus 13 degrees equals cosine of 2x minus 19 degrees?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What steps did you take to isolate x in the equation 3x minus 6 equals 90?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Verify the solution by substituting x back into the original equation. What do you find?
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