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Question 8

Digital SAT Math Practice Quiz · Deck: Digital SAT Math: Algebra, Advanced Math & Geometry

If $\sin(3x - 10^\circ) = \cos(4x + 9^\circ)$, where both angles are acute, what is the value of $x$ in degrees?

  1. 11
  2. 13
  3. 15
  4. 17

Source: Right Triangle Trigonometry, Khan Academy SAT Prep

Exam guide: SAT — subjects, format and official sources.

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