cos(2*x-pi/4)=(-sqrt(2))/2
С верным решением ты станешь самым любимым в группе❤️😊
___ / pi\ -\/ 2 cos|2*x - --| = ------- \ 4 / 2
-pi x_1 = ---- 4
pi x_2 = -- 2
сумма
-pi pi ---- + -- 4 2
=
pi -- 4
произведение
-pi pi ---- * -- 4 2
=
2 -pi ----- 8
x1 = 18.0641577581413
x2 = 64.4026493985908
x3 = -47.9092879672443
x4 = -80.1106126665397
x5 = -19.6349540849362
x6 = -7.85398163397448
x7 = 5.49778714378214
x8 = -83.2522053201295
x9 = -29.845130209103
x10 = 48.6946861306418
x11 = -1.5707963267949
x12 = 70.6858347057703
x13 = 86.3937979737193
x14 = 49.4800842940392
x15 = -38.484510006475
x16 = -63.6172512351933
x17 = 10.9955742875643
x18 = 55.7632696012188
x19 = -10.2101761241668
x20 = 24.3473430653209
x21 = 36.1283155162826
x22 = 58.1194640914112
x23 = -76.1836218495525
x24 = 90.3207887907066
x25 = 33.7721210260903
x26 = -36.1283155162826
x27 = 76.9690200129499
x28 = 54.9778714378214
x29 = 14.1371669411541
x30 = -39.2699081698724
x31 = 95.8185759344887
x32 = -41.6261026600648
x33 = -67.5442420521806
x34 = 51.8362787842316
x35 = -95.8185759344887
x36 = 32.9867228626928
x37 = -3.92699081698724
x38 = -17.2787595947439
x39 = 29.845130209103
x40 = 11.7809724509617
x41 = 73.8274273593601
x42 = 20.4203522483337
x43 = 99.7455667514759
x44 = 62.0464549083984
x45 = 4.71238898038469
x46 = -69.9004365423729
x47 = -14.1371669411541
x48 = 27.4889357189107
x49 = 46.3384916404494
x50 = -54.1924732744239
x51 = 92.6769832808989
x52 = -51.8362787842316
x53 = -58.1194640914112
x54 = -91.8915851175014
x55 = 225.409272895068
x56 = 40.0553063332699
x57 = -25.9181393921158
x58 = 68.329640215578
x59 = -23.5619449019235
x60 = -85.6083998103219
x61 = 93.4623814442964
x62 = -16.4933614313464
x63 = 26.7035375555132
x64 = -88.7499924639117
x65 = -45.553093477052
x66 = 2.35619449019234
x67 = -189.280957378785
x68 = 7.85398163397448
x69 = 98.9601685880785
x70 = 77.7544181763474
x71 = 71.4712328691678
x72 = -60.4756585816035
x73 = -61.261056745001
x74 = -89.5353906273091
x75 = -73.8274273593601
x76 = -32.2013246992954
x77 = 84.037603483527
x78 = 80.1106126665397
x79 = -98.174770424681
x80 = 42.4115008234622
x81 = -82.4668071567321
x81 = -82.4668071567321