Name: Hard SAT Math Question 14 — Video Explanation
Uploaded: 2026-07-26
Description: Step-by-step video walkthrough of question 14 from the 100 hardest Digital SAT Math questions.

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For triangle

D EF

, the sum of the measures of angles

D

and

E

9 0^{\circ}

. If

cos (D) = \frac{1}{9} 3

, what is the value of

sin (E)

\frac{1}{9} 3

\frac{3}{4}

93

\frac{4}{3}

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