题目内容

Math.asin(0.5) returns _______.

A. Math.PI / 4
B. 30
C. Math.PI / 2
D. Math.toRadians(30)

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Math.sin(Math.PI) returns _______.

A. 0.4
B. 0.0
C. 0.5
D. 1.0

Math.cos(Math.PI) returns _______.

A. 0.5
B. -1.0
C. 0.0
D. 1.0

What is Math.round(3.6)?

A. 3
B. 3.0
C. 4
D. 4.0

Which of the following is a possible output for (int)(51 * Math.random())?

A. 50
B. 100
C. 500