x/3*cos=0 (уравнение)

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    Найду корень уравнения: x/3*cos=0

    Решение

    Вы ввели [src]
    x           
    -*cos(x) = 0
    3           
    $$\frac{x}{3} \cos{\left (x \right )} = 0$$
    График
    Быстрый ответ [src]
    x1 = 0
    $$x_{1} = 0$$
         pi
    x2 = --
         2 
    $$x_{2} = \frac{\pi}{2}$$
         3*pi
    x3 = ----
          2  
    $$x_{3} = \frac{3 \pi}{2}$$
    Численный ответ [src]
    x1 = 114.668131856000
    x2 = 39.2699081699000
    x3 = 51.8362787842000
    x4 = 86.3937979737000
    x5 = -54.9778714378000
    x6 = -17.2787595947000
    x7 = 45.5530934771000
    x8 = 61.2610567450000
    x9 = 83.2522053201000
    x10 = -70.6858347058000
    x11 = -89.5353906273000
    x12 = 92.6769832809000
    x13 = 76.9690200129000
    x14 = -32.9867228627000
    x15 = -4.71238898038000
    x16 = -48.6946861306000
    x17 = -80.1106126665000
    x18 = -42.4115008235000
    x19 = -58.1194640914000
    x20 = 1.57079632679000
    x21 = -95.8185759345000
    x22 = 17.2787595947000
    x23 = 95.8185759345000
    x24 = -36.1283155163000
    x25 = -64.4026493986000
    x26 = 36.1283155163000
    x27 = -61.2610567450000
    x28 = -92.6769832809000
    x29 = 32.9867228627000
    x30 = -14.1371669412000
    x31 = 80.1106126665000
    x32 = 4.71238898038000
    x33 = 10.9955742876000
    x34 = 7.85398163397000
    x35 = 23.5619449019000
    x36 = -39.2699081699000
    x37 = 64.4026493986000
    x38 = -73.8274273594000
    x39 = 20.4203522483000
    x40 = -26.7035375555000
    x41 = -83.2522053201000
    x42 = -98.9601685881000
    x43 = 48.6946861306000
    x44 = 29.8451302091000
    x45 = 14.1371669412000
    x46 = 98.9601685881000
    x47 = -45.5530934771000
    x48 = -51.8362787842000
    x49 = -67.5442420522000
    x50 = 54.9778714378000
    x51 = 26.7035375555000
    x52 = -86.3937979737000
    x53 = -20.4203522483000
    x54 = -7.85398163397000
    x55 = -114.668131856000
    x56 = -76.9690200129000
    x57 = 89.5353906273000
    x58 = -10.9955742876000
    x59 = -1.57079632679000
    x60 = -23.5619449019000
    x61 = 73.8274273594000
    x62 = 70.6858347058000
    x63 = 0.0
    x64 = 42.4115008235000
    x65 = 67.5442420522000
    x66 = 58.1194640914000
    x67 = -29.8451302091000