cos(3*x+pi/4)=sqrt(2)/2
Найду корень уравнения: cos(3*x+pi/4)=sqrt(2)/2
x1 = -71.733032256967
x2 = 70.6858347057703
x3 = -31.9395253114962
x4 = -87.9645943005142
x5 = 83.7758040957278
x6 = 26.7035375555132
x7 = -16.7551608191456
x8 = -96.342174710087
x9 = -43.9822971502571
x10 = -25.6563400043166
x11 = 68.5914396033772
x12 = -85.870199198121
x13 = 48.1710873550435
x14 = 58.1194640914112
x15 = -90.0589894029074
x16 = 39.7935069454707
x17 = 6.28318530717959
x18 = -34.0339204138894
x19 = 14.1371669411541
x20 = -75.9218224617533
x21 = -52.3598775598299
x22 = 2.0943951023932
x23 = 62.3082542961976
x24 = 73.3038285837618
x25 = 32.9867228626928
x26 = 35.6047167406843
x27 = -100.530964914873
x28 = 76.9690200129499
x29 = -42.4115008234622
x30 = -48.1710873550435
x31 = -63.3554518473942
x32 = 12.0427718387609
x33 = 22.5147473507269
x34 = -92.1533845053006
x35 = 16.2315620435473
x36 = -4.18879020478639
x37 = -65.4498469497874
x38 = -98.4365698124802
x39 = 60.2138591938044
x40 = -39.7935069454707
x41 = -27.2271363311115
x42 = -80.1106126665397
x43 = -27.7507351067098
x44 = -94.2477796076938
x45 = 41.3643032722656
x46 = 90.0589894029074
x47 = -50.2654824574367
x48 = 53.9306738866248
x49 = 96.342174710087
x50 = 0.0
x51 = 100.007366139275
x52 = -8.37758040957278
x53 = -37.6991118430775
x54 = 66.497044500984
x55 = 85.870199198121
x56 = 81.6814089933346
x57 = 24.60914245312
x58 = 79.0634151153431
x59 = -41.8879020478639
x60 = 41.8879020478639
x61 = -21.4675497995303
x62 = -81.6814089933346
x63 = -54.4542726622231
x64 = -117.286125734019
x65 = -78.0162175641465
x66 = -29.845130209103
x67 = -23.5619449019235
x68 = -46.0766922526503
x69 = 52.3598775598299
x70 = 56.025068989018
x71 = -67.5442420521806
x72 = -2.0943951023932
x73 = 4.18879020478639
x74 = -58.6430628670095
x75 = -10.9955742875643
x76 = 97.9129710368819
x77 = 87.9645943005142
x78 = -69.6386371545737
x79 = 64.4026493985908
x80 = 37.6991118430775
x81 = -6.28318530717959
x82 = 43.9822971502571
x83 = 18.3259571459405
x84 = -73.8274273593601
x85 = 94.2477796076938
x86 = -19.3731546971371
x87 = 9.94837673636768
x88 = 92.1533845053006
x89 = 50.2654824574367
x90 = 20.4203522483337
x91 = -36.1283155162826
x92 = 46.0766922526503
x93 = -83.7758040957278
x94 = 79.5870138909414
x95 = -60.7374579694027