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Problemi più comuni

Livello	Argomento	Problema	Problema formattato
19001	求解x	logaritmo naturale di x-3+ logaritmo naturale di 2x-1 = logaritmo naturale di 3	$\ln (x - 3) + \ln (2 x - 1) = \ln (3)$
19002	求解x	logaritmo naturale di x-3=2	$\ln (x - 3) = 2$
19003	求解x	logaritmo naturale di x+1=2.631	$\ln (x + 1) = 2.631$
19004	求解x	logaritmo naturale di x-2+ logaritmo naturale di 2x-3=2 logaritmo naturale di x	$\ln (x - 2) + \ln (2 x - 3) = 2 \ln (x)$
19005	求解x	logaritmo di 10x- logaritmo di 2x-5 = logaritmo di 9	$\log (10 x) - \log (2 x - 5) = \log (9)$
19006	求解x	logaritmo di 2x = logaritmo di 4+ logaritmo di x-1	$\log (2 x) = \log (4) + \log (x - 1)$
19007	求解x	2x^3=250	$2 x^{3} = 250$
19008	求解x	2x^3-3p^4=6	$2 x^{3} - 3 p^{4} = 6$
19009	求解x	2x^-3 logaritmo naturale di x-3x^-3=0	$2 x^{- 3} \ln (x) - 3 x^{- 3} = 0$
19010	求解x	-2xr^-2+4pr=0	$- 2 x r^{- 2} + 4 p r = 0$
19011	求解x	2x^2-7x=0	$2 x^{2} - 7 x = 0$
19012	求解x	2x^2-(k-3)x+7k=0	$2 x^{2} - (k - 3) x + 7 k = 0$
19013	求解x	2x^2e^x=3xe^x	$2 x^{2} e^{x} = 3 x e^{x}$
19014	求解x	2x^(-1/3)-2=0	$2 x^{\frac{- 1}{3}} - 2 = 0$
19015	求解x	17=2(2x+9)	$17 = 2 (2 x + 9)$
19016	求解x	2-128/(x^3)=0	$2 - \frac{128}{x^{3}} = 0$
19017	求解x	2\|4-3/2x\|+9=25	$2 \| 4 - \frac{3}{2} x \| + 9 = 25$
19018	求解x	2e^xx+e^xx^2=0	$2 e^{x} x + e^{x} x^{2} = 0$
19019	求解x	2e^(2x+1)=26	$2 e^{2 x + 1} = 26$
19020	求解x	2cos(x)^2+5cos(x)=3	$2 \cos^{2} (x) + 5 \cos (x) = 3$
19021	求解x	2e^(4x)=e^(4x)+e^8	$2 e^{4 x} = e^{4 x} + e^{8}$
19022	求解x	y=e^x	$y = e^{x}$
19023	求解x	2e^x=0	$2 e^{x} = 0$
19024	求解x	2sin(2x)^2-sin(2x)=0	$2 \sin^{2} (2 x) - \sin (2 x) = 0$
19025	求解x	18x-72=0	$18 x - 72 = 0$
19026	求解x	192x-12x^2=0	$192 x - 12 x^{2} = 0$
19027	求解x	-18x+36=0	$- 18 x + 36 = 0$
19028	求解x	-2.2x+3.2=0	$- 2.2 x + 3.2 = 0$
19029	求解x	2.44-(2x)/20000=0	$2.44 - \frac{2 x}{20000} = 0$
19030	求解x	2.45 logaritmo naturale di x=7.85	$2.45 \ln (x) = 7.85$
19031	求解x	2=e^(8x)	$2 = e^{8 x}$
19032	求解x	2=98/(x^2)	$2 = \frac{98}{x^{2}}$
19033	求解x	2500-4x=0	$2500 - 4 x = 0$
19034	求解x	25e^(5x)+e^(-x)=0	$25 e^{5 x} + e^{- x} = 0$
19035	求解x	2-5sin(x)=0	$2 - 5 \sin (x) = 0$
19036	求解x	28=0.048 logaritmo naturale di x+1=27	$28 = 0.048 \ln (x + 1) = 27$
19037	求解x	2cos(3x)+1=cos(2x)+2cos(x)	$2 \cos (3 x) + 1 = \cos (2 x) + 2 \cos (x)$
19038	求解x	2 logaritmo naturale di x+ logaritmo naturale di 1/x=3	$2 \ln (x) + \ln (\frac{1}{x}) = 3$
19039	求解x	2 logaritmo naturale di 9x=10	$2 \ln (9 x) = 10$
19040	求解x	2tan(x)+sec(x)=0	$2 \tan (x) + \sec (x) = 0$
19041	求解x	2 logaritmo naturale di 2x+ logaritmo naturale di 16x=0	$2 \ln (2 x) + \ln (16 x) = 0$
19042	求解x	2cos(x)=2sin(x)	$2 \cos (x) = 2 \sin (x)$
19043	求解x	2xe^(x^2)=0	$2 x e^{x^{2}} = 0$
19044	求解x	-2+2 logaritmo naturale di 3x=17	$- 2 + 2 \ln (3 x) = 17$
19045	求解x	24x^2+4x^3=0	$24 x^{2} + 4 x^{3} = 0$
19046	求解x	176-x^2=80+1/2x^2	$176 - x^{2} = 80 + \frac{1}{2} x^{2}$
19047	求解x	1-5 logaritmo naturale di x=0	$1 - 5 \ln (x) = 0$
19048	求解x	150=400-0.04x	$150 = 400 - 0.04 x$
19049	求解x	1500-4x=0	$1500 - 4 x = 0$
19050	求解x	15*3^(2x)=225	$15 \cdot 3^{2 x} = 225$
19051	求解x	15x^2+10x=0	$15 x^{2} + 10 x = 0$
19052	求解x	15x^4-60x^2=0	$15 x^{4} - 60 x^{2} = 0$
19053	求解x	15x^2-6x=0	$15 x^{2} - 6 x = 0$
19054	求解x	15=5x-6	$15 = 5 x - 6$
19055	求解x	12x-y-11=0	$12 x - y - 11 = 0$
19056	求解x	1-4e^(-4x)=0	$1 - 4 e^{- 4 x} = 0$
19057	求解x	14=2x(900+32x-x^2)	$14 = 2 x (900 + 32 x - x^{2})$
19058	求解x	-144x^-2+1=0	$- 144 x^{- 2} + 1 = 0$
19059	求解x	144-x^2=48+1/2x^2	$144 - x^{2} = 48 + \frac{1}{2} x^{2}$
19060	求解x	12x^2-88x+120=0	$12 x^{2} - 88 x + 120 = 0$
19061	求解x	12x^2-88x+121=0	$12 x^{2} - 88 x + 121 = 0$
19062	求解x	12x^2-8x-4=0	$12 x^{2} - 8 x - 4 = 0$
19063	求解x	12x^2-152x+361=0	$12 x^{2} - 152 x + 361 = 0$
19064	求解x	12x^2-180x+464=0	$12 x^{2} - 180 x + 464 = 0$
19065	求解x	12x^2-144x+299=0	$12 x^{2} - 144 x + 299 = 0$
19066	求解x	12x^2-112x+196=0	$12 x^{2} - 112 x + 196 = 0$
19067	求解x	12x^2-132x+252=0	$12 x^{2} - 132 x + 252 = 0$
19068	求解x	12x^2-104x+169=0	$12 x^{2} - 104 x + 169 = 0$
19069	求解x	12x^2-12x=0	$12 x^{2} - 12 x = 0$
19070	求解x	12x^2-4=0	$12 x^{2} - 4 = 0$
19071	求解x	12x^2-48=0	$12 x^{2} - 48 = 0$
19072	求解x	12x^2-18x-12=0	$12 x^{2} - 18 x - 12 = 0$
19073	求解x	12x^2-204x+594=0	$12 x^{2} - 204 x + 594 = 0$
19074	求解x	12x^2-240x+819=0	$12 x^{2} - 240 x + 819 = 0$
19075	求解x	12x^2-24x=0	$12 x^{2} - 24 x = 0$
19076	求解x	12x^2-72x+77=0	$12 x^{2} - 72 x + 77 = 0$
19077	求解x	12x^2-80x+100=0	$12 x^{2} - 80 x + 100 = 0$
19078	求解x	12x^2-80x+84=0	$12 x^{2} - 80 x + 84 = 0$
19079	求解x	12288 radice quadrata di x=192x^2	$12288 \sqrt{x} = 192 x^{2}$
19080	Valutare il Limite	limite per x tendente a 0 di (sin(4x))/(9x)	$lim_{x \to 0} \frac{\sin (4 x)}{9 x}$
19081	求解x	12x=12.5x	$12 x = 12.5 x$
19082	求解x	12cos(x)-6=0	$12 \cos (x) - 6 = 0$
19083	Valutare il Limite	( limite per h tendente a 0 di (3(1/2+h)^5)-3(1/2)^5)/h	$\frac{lim_{h \to 0} (3 {(\frac{1}{2} + h)}^{5}) - 3 {(\frac{1}{2})}^{5}}{h}$
19084	求解x	144=4x^2	$144 = 4 x^{2}$
19085	求解x	-12x^2+96x=0	$- 12 x^{2} + 96 x = 0$
19086	求解x	1=tan(x)	$1 = \tan (x)$
19087	求解x	-12x^2+24x=0	$- 12 x^{2} + 24 x = 0$
19088	求解x	1-2e^(-2x)=0	$1 - 2 e^{- 2 x} = 0$
19089	求解x	1=475800(1-0.075)^x	$1 = 475800 {(1 - 0.075)}^{x}$
19090	求解x	1-1/75x^2=0	$1 - \frac{1}{75} x^{2} = 0$
19091	求解x	1+cos(x)=0	$1 + \cos (x) = 0$
19092	求解x	-1 = natural log of x	$- 1 = \ln (x)$
19093	求解x	10(1.06^x)=12(1.14^x)	$10 ({1.06}^{x}) = 12 ({1.14}^{x})$
19094	求解x	10(1+e^(-x))^-1=3	$10 {(1 + e^{- x})}^{- 1} = 3$
19095	求解x	0=x(1-1/95x^2)	$0 = x (1 - \frac{1}{95} x^{2})$
19096	求解x	0=x(1/2*(470-x))	$0 = x (\frac{1}{2} \cdot (470 - x))$
19097	求解x	0=x-1/20x^3	$0 = x - \frac{1}{20} x^{3}$
19098	求解x	0=x-1/90x^3	$0 = x - \frac{1}{90} x^{3}$
19099	求解x	0=3x^2-2x-1	$0 = 3 x^{2} - 2 x - 1$
19100	求解x	0=cos(x+pi/4)	$0 = \cos (x + \frac{π}{4})$