Mathway | Problèmes fréquents

Problèmes fréquents

Rang	Matière	Problème	Problème de formatage
26301	Resolva para x	4cos(x)^2=5-4sin(x)	$4 \cos^{2} (x) = 5 - 4 \sin (x)$
26302	Resolva para x	4cos(x)^2-4 racine carrée de 2cos(x)+2=0	$4 \cos^{2} (x) - 4 \sqrt{2} \cos (x) + 2 = 0$
26303	Resolva para x	4sec(x)^2-2=0	$4 \sec^{2} (x) - 2 = 0$
26304	Resolva para x	4sin(x)^2cos(x)+2sin(x)^2=0	$4 \sin^{2} (x) \cos (x) + 2 \sin^{2} (x) = 0$
26305	Resolva para x	4sin(2x)^2=1	$4 \sin^{2} (2 x) = 1$
26306	Resolva para x	4sin(x)^2=( racine carrée de 2)/2	$4 \sin^{2} (x) = \frac{\sqrt{2}}{2}$
26307	Resolva para x	4(x)=(12(x))/(4+x)	$4 (x) = \frac{12 (x)}{4 + x}$
26308	Resolva para x	4a^2=36	$4 a^{2} = 36$
26309	Resolva para x	4cos(x)^2-7cos(x)-2=0	$4 \cos^{2} (x) - 7 \cos (x) - 2 = 0$
26310	Resolva para x	3x-12y=6	$3 x - 12 y = 6$
26311	Resolva para x	3x-4y=28	$3 x - 4 y = 28$
26312	Resolva para x	6 logarithme népérien de 8x+9-6=12	$6 \ln (8 x + 9) - 6 = 12$
26313	Resolva para x	-6x+3y=0	$- 6 x + 3 y = 0$
26314	Resolva para x	6y=5x	$6 y = 5 x$
26315	Resolva para x	7m^2=33m	$7 m^{2} = 33 m$
26316	Resolva para x	7sin(x)^2+5cos(x)^2=5+2sin(x)^2	$7 \sin^{2} (x) + 5 \cos^{2} (x) = 5 + 2 \sin^{2} (x)$
26317	Resolva para x	7x^2+18=0	$7 x^{2} + 18 = 0$
26318	Resolva para x	7x^2+6 racine carrée de 3xy+13y^2-6=0	$7 x^{2} + 6 \sqrt{3} x y + 13 y^{2} - 6 = 0$
26319	Resolva para x	-7=3(x-5)-5x	$- 7 = 3 (x - 5) - 5 x$
26320	Resolva para x	7-6sin(x)=3+2sin(x)	$7 - 6 \sin (x) = 3 + 2 \sin (x)$
26321	Resolva para x	7cos(2t)=3	$7 \cos (2 t) = 3$
26322	Resolva para x	7sin(x)-7cos(2x)=0	$7 \sin (x) - 7 \cos (2 x) = 0$
26323	Resolva para x	7sin(x)=5tan(x)	$7 \sin (x) = 5 \tan (x)$
26324	Resolva para x	7x-(3x-6)=18	$7 x - (3 x - 6) = 18$
26325	Resolva para x	7x+5x-3y+54=180	$7 x + 5 x - 3 y + 54 = 180$
26326	Resolva para x	7x-5y=6	$7 x - 5 y = 6$
26327	Resolva para x	7x-6z=10	$7 x - 6 z = 10$
26328	Resolva para x	8cos(2x)^2+7cos(2x)-1=0	$8 \cos^{2} (2 x) + 7 \cos (2 x) - 1 = 0$
26329	Resolva para x	8 base logarithmique 9 de -4n=24	$8 \log_{9} (- 4 n) = 24$
26330	Resolva para x	8n^2-16n-17=-7	$8 n^{2} - 16 n - 17 = - 7$
26331	Resolva para x	8sec(x)^2-8=0	$8 \sec^{2} (x) - 8 = 0$
26332	Resolva para x	8sin(x/2)^2-10sin(x/2)+3=0	$8 \sin^{2} (\frac{x}{2}) - 10 \sin (\frac{x}{2}) + 3 = 0$
26333	Resolva para x	8sin(x)^2-4sin(x)=2	$8 \sin^{2} (x) - 4 \sin (x) = 2$
26334	Resolva para x	8 racine carrée de 2cos(x)+6=-2	$8 \sqrt{2} \cos (x) + 6 = - 2$
26335	Resolva para x	8x^2+80x=-5	$8 x^{2} + 80 x = - 5$
26336	Resolva para x	8sin(2x)-8sin(x)=0	$8 \sin (2 x) - 8 \sin (x) = 0$
26337	Resolva para x	8sin(6x)=7	$8 \sin (6 x) = 7$
26338	Resolva para x	8sin(x)-e^x=1	$8 \sin (x) - e^{x} = 1$
26339	Resolva para x	8sin(x)+4=0	$8 \sin (x) + 4 = 0$
26340	Resolva para x	8tan(x)=-3	$8 \tan (x) = - 3$
26341	Resolva para x	-8u-8=2(-4u-4)	$- 8 u - 8 = 2 (- 4 u - 4)$
26342	Resolva para x	8x-4=x^2+5x-14	$8 x - 4 = x^{2} + 5 x - 14$
26343	Resolva para x	9.76=0.67 logarithme de 0.37x	$9.76 = 0.67 \log (0.37 x)$
26344	Resolva para x	9(x-4)^2+16(y-3)^2=144	$9 {(x - 4)}^{2} + 16 {(y - 3)}^{2} = 144$
26345	Resolva para x	9sin(x)^2tan(x)=16tan(x)	$9 \sin^{2} (x) \tan (x) = 16 \tan (x)$
26346	Resolva para x	9x^2+25y^2=225	$9 x^{2} + 25 y^{2} = 225$
26347	Resolva para x	5csc(pi/3)cot(pi/6)	$5 \csc (\frac{π}{3}) \cot (\frac{π}{6})$
26348	Resolva para x	5 logarithme de x+1+10=10 logarithme de t+1+5	$5 \log (x + 1) + 10 = 10 \log (t + 1) + 5$
26349	Resolva para x	5sin(x)=-3	$5 \sin (x) = - 3$
26350	Resolva para x	5sin(3x)+6cos(3x)=1	$5 \sin (3 x) + 6 \cos (3 x) = 1$
26351	Resolva para x	5sin(x)+2cos(2)-3=0	$5 \sin (x) + 2 \cos (2) - 3 = 0$
26352	Resolva para x	5sin(x)+3=0	$5 \sin (x) + 3 = 0$
26353	Resolva para x	5sin(x-3)=sin(x)	$5 \sin (x - 3) = \sin (x)$
26354	Resolva para x	5tan(x)cos(x)=7cos(x)	$5 \tan (x) \cos (x) = 7 \cos (x)$
26355	Resolva para x	-5x+4y=26	$- 5 x + 4 y = 26$
26356	Resolva para x	5x-16=-86	$5 x - 16 = - 86$
26357	Resolva para x	5y+12=-8/y	$5 y + 12 = - \frac{8}{y}$
26358	Resolva para x	5y=25	$5 y = 25$
26359	Resolva para x	6(4x)=7	$6 (4 x) = 7$
26360	Resolva para x	6*17^(-8x)=79	$6 \cdot 17^{- 8 x} = 79$
26361	Resolva para x	6.3x-6.2=x+21.8	$6.3 x - 6.2 = x + 21.8$
26362	Resolva para x	6arccos(5x)=5pi	$6 \arccos (5 x) = 5 π$
26363	Resolva para x	6 base logarithmique 4 de 4x+5+2=5	$6 \log_{4} (4 x + 5) + 2 = 5$
26364	Resolva para x	6n^2+6=7n	$6 n^{2} + 6 = 7 n$
26365	Resolva para x	6sin(x)^2+5sin(x)-6=0	$6 \sin^{2} (x) + 5 \sin (x) - 6 = 0$
26366	Resolva para x	6sin(x-3)^2=0	$6 \sin^{2} (x - 3) = 0$
26367	Resolva para x	6sin(x)^2-sin(x)-2=0	$6 \sin^{2} (x) - \sin (x) - 2 = 0$
26368	Resolva para x	6tan(x)^2-18=0	$6 \tan^{2} (x) - 18 = 0$
26369	Resolva para x	6x^2-16x+5=0	$6 x^{2} - 16 x + 5 = 0$
26370	Resolva para x	-6=-6cos(A)	$- 6 = - 6 \cos (A)$
26371	Resolva para x	64=144+49-168cos(x)	$64 = 144 + 49 - 168 \cos (x)$
26372	Resolva para x	cos(-300)	$\cos (- 300)$
26373	Resolva para x	cos(35)=9/x	$\cos (35) = \frac{9}{x}$
26374	Resolva para x	cos(39)=12/x	$\cos (39) = \frac{12}{x}$
26375	Resolva para x	cos(3a+50)=sec(7a-70)	$\cos (3 a + 50) = \sec (7 a - 70)$
26376	Resolva para x	cos(3s)=1/2	$\cos (3 s) = \frac{1}{2}$
26377	Resolva para x	cos(3x)+0.5x=0	$\cos (3 x) + 0.5 x = 0$
26378	Resolva para x	cos(3x) = square root of 3/2	$\cos (3 x) = \sqrt{\frac{3}{2}}$
26379	Resolva para x	cos(3x-pi/3)=( racine carrée de 2)/2	$\cos (3 x - \frac{π}{3}) = \frac{\sqrt{2}}{2}$
26380	Resolva para x	cos(4x)=-1	$\cos (4 x) = - 1$
26381	Resolva para x	cos(4x-6)=1/(sec(2x+14))	$\cos (4 x - 6) = \frac{1}{\sec (2 x + 14)}$
26382	Resolva para x	cos(42)=70/x	$\cos (42) = \frac{70}{x}$
26383	Resolva para x	cos(43)=8.7/(BC)	$\cos (43) = \frac{8.7}{B C}$
26384	Resolva para x	cos(4x)=0.8x-12	$\cos (4 x) = 0.8 x - 12$
26385	Resolva para x	cos(60)=(2 racine carrée de 7)/x	$\cos (60) = \frac{2 \sqrt{7}}{x}$
26386	Resolva para x	cos(68)=x/23	$\cos (68) = \frac{x}{23}$
26387	Resolva para x	cos(6x)=0	$\cos (6 x) = 0$
26388	Resolva para x	cos(6y)=cos(3y)^2-sin(3y)^2	$\cos (6 y) = \cos^{2} (3 y) - \sin^{2} (3 y)$
26389	Resolva para x	cos(7x-8x)=cos(7x)cos(8x)+sin(7x)sin(8x)	$\cos (7 x - 8 x) = \cos (7 x) \cos (8 x) + \sin (7 x) \sin (8 x)$
26390	Resolva para x	cos(a)+cos(120-a)+cos(120+a)=0	$\cos (a) + \cos (120 - a) + \cos (120 + a) = 0$
26391	Resolva para x	cos(a)=0.6786925097	$\cos (a) = 0.67869250$
26392	Resolva para x	cos(a-b)=tan(a)=5/12=sin(b)=12/13	$\cos (a - b) = \tan (a) = \frac{5}{12} = \sin (b) = \frac{12}{13}$
26393	Resolva para x	cos(b)=(a^2+c^2-b^2)/(2ac)	$\cos (b) = \frac{a^{2} + c^{2} - b^{2}}{2 a c}$
26394	Resolva para x	cos(t)=1/2	$\cos (t) = \frac{1}{2}$
26395	Resolva para x	cos(t)=5/4	$\cos (t) = \frac{5}{4}$
26396	Resolva para x	cos(t)=0	$\cos (t) = 0$
26397	Resolva para x	cos(u)=15/-17	$\cos (u) = \frac{15}{- 17}$
26398	Resolva para x	cos(x)(cos(x-1))=0	$\cos (x) (\cos (x - 1)) = 0$
26399	Resolva para x	cos(x)(sin(x)-1)=0	$\cos (x) (\sin (x) - 1) = 0$
26400	Resolva para x	cos(x)+ racine carrée de 2=cos(x)	$\cos (x) + \sqrt{2} = \cos (x)$