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單項(xiàng)選擇題

Which method is an appropriate way to determine the cosine of 42 degrees?()

A. Double d = Math.cos(42);
B. Double d = Math.cosine(42);
C. Double d = Math.cos(Math.toRadians(42));
D. Double d = Math.cos(Math.toDegrees(42));
E. Double d = Math.cosine(Math.toRadians(42));

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