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package open;
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public class sanjiao {
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public double sanjiao(String a,double b) {
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double c=Math.toRadians(b);
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if(a=="sin")
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return Math.sin(c);
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else if(a=="cos")
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return Math.cos(c);
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else if(a=="tan")
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return Math.tan(c);
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return 0;
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}
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}
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