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2*cos¦È*cos¦È-1¤ÎÃͤò½Ð¤·¤¿¤¤¤Î¤Ç¤¹¤¬¤è¤¯¤ï¤«¤ê¤Þ¤»¤ó¡ä¡ã¡¨
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class Snkai{
public static void main(String[] args) {
double ¦È=25, rad;
rad=Math.toRadians(¦È);

double z=Math.pow(cos¦È,2);

System.out.println("³ÑÅÙ " + deg + "ÅÙ");
System.out.println("f=2*cos¦È*cos¦È-1" + (float)2z-1);
Åú¤¨:
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double z=Math.pow(cos¦È,2);

;¸¹´Ø¿ô¤Ï¡¤Math.cos() ¤Ç¤¹¡£

double z=Math.pow(Math.cos(¦È),2);

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double z = Math.cos(¦È) * Math.cos(¦È);

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