有一道题没读懂。。
8. Col A: Number of prime factors of 30
Col B: Number of prime factors of 30, such the factor is in the form of 2p and ‘p’ is divisible by 6。
这题答案是什么?
Given that ‘O’ and ‘S’ are centers of the circles and ‘X’ and ‘P’ are two points on the circle. If the length of the arc XPS is 3pie/4, then find the radius of first circle?
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