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- La ecuación:
-
Ecuación -x=3
-
Ecuación 2^x=5
- Ecuación x^4-35*x^2-36=0
-
Ecuación x(x^2+2x+1)=6(x+1)
- Expresar {x} en función de y en la ecuación:
- -11*x-3*y=14
- 2*x-15*y=-1
- 8*x+3*y=4
- 6*x+9*y=-9
-
Expresiones idénticas
- uno +cos(x)+ dos *cos(x/ dos)*cos(3x/ dos)= cero
- 1 más coseno de (x) más 2 multiplicar por coseno de (x dividir por 2) multiplicar por coseno de (3x dividir por 2) es igual a 0
- uno más coseno de (x) más dos multiplicar por coseno de (x dividir por dos) multiplicar por coseno de (3x dividir por dos) es igual a cero
- 1+cos(x)+2cos(x/2)cos(3x/2)=0
- 1+cosx+2cosx/2cos3x/2=0
- 1+cos(x)+2*cos(x/2)*cos(3x/2)=O
- 1+cos(x)+2*cos(x dividir por 2)*cos(3x dividir por 2)=0
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Expresiones semejantes
- 1+cos(x)-2*cos(x/2)*cos(3x/2)=0
- 1-cos(x)+2*cos(x/2)*cos(3x/2)=0
- 1+cosx+2*cos(x/2)*cos(3x/2)=0
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Expresiones con funciones
- Coseno cos
- cos(3*x-pi/4)=-1
- cos(x)=-(2/5)
- cos(2*x)=sin(x+pi/2)
- cos(2*x)=-1/2
- cos(x)=√3
- Coseno cos
- cos(3*x-pi/4)=-1
- cos(x)=-(2/5)
- cos(2*x)=sin(x+pi/2)
- cos(2*x)=-1/2
- cos(x)=√3
- Coseno cos
- cos(3*x-pi/4)=-1
- cos(x)=-(2/5)
- cos(2*x)=sin(x+pi/2)
- cos(2*x)=-1/2
- cos(x)=√3
1+cos(x)+2*cos(x/2)*cos(3x/2)=0 la ecuación
El profesor se sorprenderá mucho al ver tu solución correcta😉
Solución
Ha introducido
[src]
/x\ /3*x\
1 + cos(x) + 2*cos|-|*cos|---| = 0
\2/ \ 2 /
$$\left(\cos{\left(x \right)} + 1\right) + 2 \cos{\left(\frac{x}{2} \right)} \cos{\left(\frac{3 x}{2} \right)} = 0$$
Respuesta numérica
[src]
x1 = 61.261056745001
x2 = 42.4115008234622
x3 = -29.845130209103
x4 = 17.2787595947439
x5 = 40.8407043427125
x6 = -78.5398161850973
x7 = -36.1283155162826
x8 = 86.3937979737193
x9 = -10.9955742875643
x10 = -98.9601685880785
x11 = 28.2743338652235
x12 = -91.1061870617513
x13 = -61.261056745001
x14 = -97.3893724252203
x15 = -95.8185759344887
x16 = 47.1238905156601
x17 = 23.5619449019235
x18 = -84.8230020186947
x19 = 15.7079634283821
x20 = -14.1371669411541
x21 = -15.7079632964512
x22 = -72.2566308831918
x23 = 58.1194640914112
x24 = 10.9955742875643
x25 = -28.2743337271955
x26 = -21.9911485825594
x27 = 72.2566310277204
x28 = -40.8407049448264
x29 = -92.6769832808989
x30 = -48.6946861306418
x31 = 34.5575190401242
x32 = -23.5619449019235
x33 = 47.1238891910616
x34 = -17.2787595947439
x35 = -26.7035375555132
x36 = -65.9734457651102
x37 = -67.5442420521806
x38 = -80.1106126665397
x39 = -1.5707963267949
x40 = 36.1283155162826
x41 = -76.9690200129499
x42 = 48.6946861306418
x43 = 3.14159237966678
x44 = 53.407075264892
x45 = 76.9690200129499
x46 = 98.9601685880785
x47 = -78.5398161632939
x48 = -53.40707527053
x49 = 83.2522053201295
x50 = 65.9734457528109
x51 = 70.6858347057703
x52 = -45.553093477052
x53 = -47.1238899312794
x54 = -89.5353906273091
x55 = -70.6858347057703
x56 = 9.42477812420882
x57 = 97.3893724028077
x58 = 73.8274273593601
x59 = 3.14159255416701
x60 = -9.42477811540647
x61 = 20.4203522483337
x62 = 21.9911485851865
x63 = 84.8230014843127
x64 = 45.553093477052
x65 = 95.8185759344887
x66 = -20.4203522483337
x67 = -58.1194640914112
x68 = -34.5575190186597
x69 = 80.1106126665397
x70 = -59.6902604574727
x71 = 7.85398163397448
x72 = 26.7035375555132
x73 = 29.845130209103
x74 = -54.9778714378214
x75 = 14.1371669411541
x76 = 39.2699081698724
x77 = -64.4026493985908
x78 = -4.71238898038469
x79 = 78.5398161960398
x80 = 91.1061864055267
x81 = -114.668131856027
x82 = -21.9911485864616
x83 = 51.8362787842316
x84 = 84.8230022546705
x85 = 64.4026493985908
x86 = -73.8274273593601
x87 = 32.9867228626928
x88 = -32.9867228626928
x89 = -51.8362787842316
x90 = -9.42477809807754
x91 = 67.5442420521806
x92 = 59.6902605835311
x93 = -7.85398163397448
x94 = -3.1415927960834
x95 = 91.1061877275391
x96 = 54.9778714378214
x96 = 54.9778714378214