Question Details

Detailed explanation and options for the selected question.

If sin(x) = 3/5 and x is in the first quadrant, what is cos(x)?

A. 4/5
B. 3/5
C. 5/3
D. None of these

Explanation:

Using sin^2(x) + cos^2(x) = 1, cos(x) = 4/5. Other options do not satisfy the equation.

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