Digital ACT Math Practice Question #2027
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Pythagorean triple (3, 4, 5) -> cos(x) = 4/5.
Draw a right triangle: opposite = 3, hypotenuse = 5. By the Pythagorean theorem, adjacent = sqrt(5^2 - 3^2) = 4. Thus cos(x) = 4/5....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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