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1.        ÓÃmatlab¼ÆË㣬µÃ²»µ½xµÄ׼ȷ±í´ïʽ£¬ÀýÈçx=atan(¡­)£»
2.        Èý½Çº¯Êý»ý·ÖĬÈÏÊǺͲîºÏ²¢£¬ÀýÈçcos(A - x)£¬Äܲ»Äܲ𿪳Écos(A)*cos(x)+sin(A)*sin(X)

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clear;
syms A B C D E ;   %³£Á¿
syms x;   %»ý·Ö·½³ÌÇó½âµÄÁ¿
syms t;   %»ý·Ö±äÁ¿

y1=int(sin(t- x),t,0,A)
y2=int(sin(t- x),t,A,B)
y3=int(sin(t- x),t,B,pi)
y4=int(t*sin(t- x),t,0,A)
y5=int(t*sin(t- x),t,B,pi)
y = D*y1 + E*y2 + (E+C*B)*y3 + C*y4 -C*y5;
x = solve(y==0,x)

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y1 =
cos(x) - cos(A - x)
y2 =
cos(A - x) - cos(B - x)
y3 =
cos(x) + cos(B - x)
y4 =
sin(A - x) + sin(x) - A*cos(A - x)
y5 =
sin(x) - sin(B - x) + B*cos(B - x) + pi*cos(x)
x =
  -log(((C*exp(A*i)*i + C*exp(B*i)*i + D*exp(A*i + B*i) - D*exp(B*i) +¡­¡­(ºÜ³¤)
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