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Problemi più comuni

Livello	Argomento	Problema	Problema formattato
19301	求解y	3y^2-36y=-69	$3 y^{2} - 36 y = - 69$
19302	求解y	y/6=(1.5t+y)/13	$\frac{y}{6} = \frac{1.5 t + y}{13}$
19303	求解y	y^2=400	$y^{2} = 400$
19304	求解y	2 radice quadrata di y=2	$2 \sqrt{y} = 2$
19305	求解y	2x+3y=xy	$2 x + 3 y = x y$
19306	求导数 - d/d@VAR	f(x) = square root of 14x	$f (x) = \sqrt{14 x}$
19307	求解y	3y+9=2y+12	$3 y + 9 = 2 y + 12$
19308	求解y	4x^2-y^2=9	$4 x^{2} - y^{2} = 9$
19309	求解y	y(5)=(5)^3-15(5)^2+75(5)+4	$y (5) = {(5)}^{3} - 15 {(5)}^{2} + 75 (5) + 4$
19310	求解y	x-y=0	$x - y = 0$
19311	求解y	y-(-1/4)=-1/32*(x-(-8))	$y - (- \frac{1}{4}) = - \frac{1}{32} \cdot (x - (- 8))$
19312	求解y	y-(2 radice quadrata di 3)/3=2/3*(x-pi/6)	$y - \frac{2 \sqrt{3}}{3} = \frac{2}{3} \cdot (x - \frac{π}{6})$
19313	求解y	y+1=3(x-1)	$y + 1 = 3 (x - 1)$
19314	求解y	y+2=-1/4*(x-1)	$y + 2 = - \frac{1}{4} \cdot (x - 1)$
19315	求解y	y+2=-1/7*(x-2)	$y + 2 = - \frac{1}{7} \cdot (x - 2)$
19316	求解y	y=(8.06)-3/65*(8.06)^3	$y = (8.06) - \frac{3}{65} \cdot {(8.06)}^{3}$
19317	求解y	y=-0.70*30+135	$y = - 0.7 \cdot 30 + 135$
19318	求解y	v=y^(1-p)	$v = y^{1 - p}$
19319	求解y	x+xy-9x^6=9	$x + x y - 9 x^{6} = 9$
19320	求导数 - d/d@VAR	f(x)=2x^2-4x+6	$f (x) = 2 x^{2} - 4 x + 6$
19321	求解y	x = square root of 9-y^2	$x = \sqrt{9 - y^{2}}$
19322	求解y	x=(4y-1)/(2y+3)	$x = \frac{4 y - 1}{2 y + 3}$
19323	求解y	x=4y^2-y^3	$x = 4 y^{2} - y^{3}$
19324	求解y	x=8y^2-32y-35	$x = 8 y^{2} - 32 y - 35$
19325	求解y	- logaritmo naturale di 1- radice quadrata di (y^2)/(x^2)+1 = logaritmo naturale di x+c	$- \ln (1 - \sqrt{\frac{y^{2}}{x^{2}} + 1}) = \ln (x) + c$
19326	求解y	logaritmo naturale di 2^y-1=x^2-3	$\ln (2^{y} - 1) = x^{2} - 3$
19327	求解y	logaritmo naturale di y^2-1- logaritmo naturale di y+1 = logaritmo naturale di sin(x)	$\ln (y^{2} - 1) - \ln (y + 1) = \ln (\sin (x))$
19328	求解y	logaritmo naturale di y=1	$\ln (y) = 1$
19329	求解y	logaritmo naturale di y-40=5t	$\ln (y - 40) = 5 t$
19330	求解y	q=100-2x+100-4y	$q = 100 - 2 x + 100 - 4 y$
19331	求解y	sin(150)=y/400	$\sin (150) = \frac{y}{400}$
19332	求解y	y^2-6y+7=0	$y^{2} - 6 y + 7 = 0$
19333	求解y	x+2y=32	$x + 2 y = 32$
19334	求解y	x+2y=9	$x + 2 y = 9$
19335	求解L	5L=20480*(L^4)/(4096^2)	$5 L = 20480 \cdot \frac{L^{4}}{4096^{2}}$
19336	求解l	(1140-19l)^(1/2)*l^(1/2)=0	${(1140 - 19 l)}^{\frac{1}{2}} \cdot l^{\frac{1}{2}} = 0$
19337	求解a	215=1/2*(a(65/a)^2)	$215 = \frac{1}{2} \cdot (a {(\frac{65}{a})}^{2})$
19338	求解a	230=1/2*(85/a)^2	$230 = \frac{1}{2} \cdot {(\frac{85}{a})}^{2}$
19339	求解h	a=lw+hw+lh	$a = l w + h w + l h$
19340	求解h	h=-16t^2+32t+384	$h = - 16 t^{2} + 32 t + 384$
19341	求解F	F=4.62k^(5/4)	$F = 4.62 k^{\frac{5}{4}}$
19342	求解F	F(3)=9/4*(3)^4	$F (3) = \frac{9}{4} \cdot {(3)}^{4}$
19343	求解F	C=5/9(F-32)	$C = \frac{5}{9} (F - 32)$
19344	求解m	m+5=m-3	$m + 5 = m - 3$
19345	求解p	p(41)=0.0135(41)^2*(1.126(41))+41.2	$p (41) = 0.0135 {(41)}^{2} \cdot (1.126 (41)) + 41.2$
19346	求解a	a=8954.238(1.06)^10	$a = 8954.238 {(1.06)}^{10}$
19347	求解b	a^2x^2-b^2=0	$a^{2} x^{2} - b^{2} = 0$
19348	求解c	-2c=0	$- 2 c = 0$
19349	求解C	C(150)=0.01(150)+1.3	$C (150) = 0.01 (150) + 1.3$
19350	求解d	(d^3y)/(dx^3)=0	$\frac{d^{3} y}{d x^{3}} = 0$
19351	求解c	10sin(c)-8sin(2c)=20/pi	$10 \sin (c) - 8 \sin (2 c) = \frac{20}{π}$
19352	求解c	cx=1.9+1000/x	$c x = 1.9 + \frac{1000}{x}$
19353	求解s	s=108(0.5t+1)^-1	$s = 108 {(0.5 t + 1)}^{- 1}$
19354	求解s	s=10sin(pi/4)-cos(pi/4)	$s = 10 \sin (\frac{π}{4}) - \cos (\frac{π}{4})$
19355	求导数 - d/dt	radice cubica di t	$\sqrt[3]{t}$
19356	求解t	10p^2d^2+7pdt=12t^2	$10 p^{2} d^{2} + 7 p d t = 12 t^{2}$
19357	求解t	250=Vt+(1/2)at^2	$250 = V t + (\frac{1}{2}) a t^{2}$
19358	求解t	1/(1+ae^(-kt))=1/2	$\frac{1}{1 + a e^{- k t}} = \frac{1}{2}$
19359	求解r	4p(33-pr)=0	$4 p (33 - p r) = 0$
19360	求解r	r(120)=2.5(120)^2+600(120)	$r (120) = 2.5 {(120)}^{2} + 600 (120)$
19361	求导数 - d/dx	-6/(x^7)	$- \frac{6}{x^{7}}$
19362	求解s	2s-1024/(s^2)=0	$2 s - \frac{1024}{s^{2}} = 0$
19363	求解p	p=90-(1/2*(90-1/2p))	$p = 90 - (\frac{1}{2} \cdot (90 - \frac{1}{2} p))$
19364	求解p	sin(40)=pi/80	$\sin (40) = \frac{π}{80}$
19365	求解P	P=5.31e^((0.031002937114)*50)	$P = 5.31 e^{(0.03100293) \cdot 50}$
19366	求解k	2500=1000e^k	$2500 = 1000 e^{k}$
19367	求解l	5(210)+2l=2100	$5 (210) + 2 l = 2100$
19368	将a=0线性化	f(x) = square root of 4-x , a=0	$\frac{64}{15} = - \frac{1}{120} \cdot {(- \frac{1}{2})}^{n - 1}$
19369	求解q	q^2+9q=1020-17q-q^2	$q^{2} + 9 q = 1020 - 17 q - q^{2}$
19370	求解q	q^S(p)=0.125p-5	$q^{S} (p) = 0.125 p - 5$
19371	求解q	-4x+2-2q=0	$- 4 x + 2 - 2 q = 0$
19372	求解q	p=300e^(-0.3q)	$p = 300 e^{- 0.3 q}$
19373	求解r	(r-3)^2=(r^2-5r)+3	${(r - 3)}^{2} = (r^{2} - 5 r) + 3$
19374	求解r	r^2(cos(x)^2)+r^2(sin(x)^2)-2sin(x)=9	$r^{2} (\cos^{2} (x)) + r^{2} (\sin^{2} (x)) - 2 \sin (x) = 9$
19375	求解t	(t+3)/(t+1)=(t^2+9t+20)/(t^2-t-2)	$\frac{t + 3}{t + 1} = \frac{t^{2} + 9 t + 20}{t^{2} - t - 2}$
19376	求解t	d=Vt+(1/2)at^2	$d = V t + (\frac{1}{2}) a t^{2}$
19377	求解v	1/29.110^-31v^2=1.610^-1917510^6	$\frac{1}{2} \cdot 9.1 \cdot 10^{- 31} \cdot v^{2} = 1.6 \cdot 10^{- 19} \cdot 175 \cdot 10^{6}$
19378	求解u	(u+3)/(4u+7)=1+(2(1-2u))/(5u-1)	$\frac{u + 3}{4 u + 7} = 1 + \frac{2 (1 - 2 u)}{5 u - 1}$
19379	求解t	7-2t^-2=0	$7 - 2 t^{- 2} = 0$
19380	求解t	3=e^(0.21t)	$3 = e^{0.21 t}$
19381	求解t	h=12t^3-198t^2+9500	$h = 12 t^{3} - 198 t^{2} + 9500$
19382	求解x	(1/(2 radice quadrata di 2x^2)) = radice quadrata di 2x	$(\frac{1}{2 \sqrt{2 x^{2}}}) = \sqrt{2 x}$
19383	求解w	400=2l+2w+2p	$400 = 2 l + 2 w + 2 p$
19384	求解x	(x^2-y^2)dx+(x^2-2xy)dy=0	$(x^{2} - y^{2}) d x + (x^{2} - 2 x y) d y = 0$
19385	求解x	(-x^3)+(9x^2)=15x+6	$(- x^{3}) + (9 x^{2}) = 15 x + 6$
19386	求解x	0.012x^2-0.1x+0.18=0	$0.012 x^{2} - 0.1 x + 0.18 = 0$
19387	求解v	v=(1-t)(1+t^2)^-1	$v = (1 - t) {(1 + t^{2})}^{- 1}$
19388	求解V	C=160/v+(V^2)/100	$C = \frac{160}{v} + \frac{V^{2}}{100}$
19389	求解t	6t-(5t+8)=1-2(5-t)	$6 t - (5 t + 8) = 1 - 2 (5 - t)$
19390	求解v	v(10)=100e^(-0.1t)+0.1t	$v (10) = 100 e^{- 0.1 t} + 0.1 t$
19391	求导数 - d/dx	radice quadrata di 9x+4	$\sqrt{9 x + 4}$
19392	求解x	((x+3)^2)/64-((y+1)^2)/36=1	$\frac{{(x + 3)}^{2}}{64} - \frac{{(y + 1)}^{2}}{36} = 1$
19393	求解x	(27)^(x+6)=(3)^(x^2)	${(27)}^{x + 6} = {(3)}^{x^{2}}$
19394	求解s	s=7-3sin(t)	$s = 7 - 3 \sin (t)$
19395	求解x	0.004x=7263/(x^2)	$0.004 x = \frac{7263}{x^{2}}$
19396	求解x	0.7=x/10	$0.7 = \frac{x}{10}$
19397	求解x	0.9x^2+2.4x-6=0	$0.9 x^{2} + 2.4 x - 6 = 0$
19398	求解x	(x-3)(x+5)=-7	$(x - 3) (x + 5) = - 7$
19399	求解x	(-5pisin((pix)/8))/8=0	$\frac{- 5 π \sin (\frac{π x}{8})}{8} = 0$
19400	求解x	(1.1x- radice quadrata di x^2+9)/( radice quadrata di x^2+9)=0	$\frac{1.1 x - \sqrt{x^{2} + 9}}{\sqrt{x^{2} + 9}} = 0$