4*sin(2*x)^(4)+3*cos(4*x)-1=0

x1 = 93.8550805260000

x2 = -82.0741080750000

x3 = 47.9092878740000

x4 = -31.8086256176000

x5 = 12.1736715327000

x6 = 40.0553062188000

x7 = -11.7809724248000

x8 = 100.138265833000

x9 = -5.89048622548000

x10 = 88.3572933822000

x11 = 27.8816348006000

x12 = 71.8639319509000

x13 = 42.0188017418000

x14 = -13.7444678595000

x15 = -84.0376034577000

x16 = 30.2378292908000

x17 = 91.8915851977000

x18 = -25.5254403104000

x19 = -47.9092881952000

x20 = 32.2013247425000

x21 = 65.1880475270000

x22 = -45.9457925588000

x23 = -27.8816348006000

x24 = -77.7544181730000

x25 = 76.1836219099000

x26 = 56.1559686829000

x27 = -75.7909227679000

x28 = 8.24668071567000

x29 = 96.2112750162000

x30 = -79.7179135848000

x31 = -4.31968989869000

x32 = -71.8639319509000

x33 = 59.2975613365000

x34 = 98.1747704920000

x35 = -99.7455667547000

x36 = -38.0918109248000

x37 = 44.7676952438000

x38 = -53.7997741927000

x39 = 90.3207887769000

x40 = 5.89048622548000

x41 = 52.2289778659000

x42 = 34.1648201078000

x43 = 78.9325154214000

x44 = -65.5807466437000

x45 = -97.7820713430000

x46 = 574.518756525000

x47 = -16.1006623496000

x48 = -9.81747704247000

x49 = -10.2101761111000

x50 = -18.0641577373000

x51 = -55.7632695907000

x52 = 49.8727833757000

x53 = 68.3296402231000

x54 = 22.3838476568000

x55 = -67.9369411339000

x56 = -62.0464548817000

x57 = -89.9280897090000

x58 = 74.2201264411000

x59 = -86.0010988920000

x60 = 24.3473431867000

x61 = 0.392699081699000

x62 = 78.1471172580000

x63 = -1.96349540849000

x64 = -57.7267650097000

x65 = -49.8727833757000

x66 = 86.0010988920000

x67 = 66.3661448071000

x68 = -35.7356164346000

x69 = -21.5984494934000

x70 = -43.5895980686000

x71 = -93.8550805260000

x72 = -40.0553063080000

x73 = 81.2887099116000

x74 = 10.2101761587000

x75 = -74.6128255940000

x76 = -23.9546439836000

x77 = 84.0376034106000

x78 = -60.0829594999000

x79 = -63.2245521535000

x80 = -41.6261027882000

x81 = -87.5718952188000

x82 = -91.8915850325000

x83 = 46.3384917112000

x84 = 54.1924733264000

x85 = 24.3473431014000

x86 = 82.8595062384000

x87 = 38.0918109248000

x88 = 16.1006623496000

x89 = 3.92699082722000

x90 = 44.3749962320000

x91 = 20.0276531666000

x92 = -52.6216770202000

x93 = 25.9181393748000

x94 = -33.7721210080000

x95 = -96.6039740447000

x96 = 64.0099503169000

x97 = 62.0464548097000