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Problemi più comuni

Livello	Argomento	Problema	Problema formattato
15801	求解c	arccos(90)=16/c	$\arccos (90) = \frac{16}{c}$
15802	求解b	(2pi)/b=6pi	$\frac{2 π}{b} = 6 π$
15803	求解b	b=10cos(30)	$b = 10 \cos (30)$
15804	求解c	22.24^2=11^2+21^2-21121cos(c)	${22.24}^{2} = 11^{2} + 21^{2} - 2 \cdot 11 \cdot 21 \cos (c)$
15805	求解c	c^2=15	$c^{2} = 15$
15806	求解c	c^2=29	$c^{2} = 29$
15807	求解x	\|x-15\|=x^2-15x	$\| x - 15 \| = x^{2} - 15 x$
15808	求解x	(6x+4)^2=77	${(6 x + 4)}^{2} = 77$
15809	求解x	(2x)/(x^2-1)+(x+3)/(x+1)=(x+1)/(x-1)	$\frac{2 x}{x^{2} - 1} + \frac{x + 3}{x + 1} = \frac{x + 1}{x - 1}$
15810	求解x	(x^3-27)/(x-3)=x^2+3x+9	$\frac{x^{3} - 27}{x - 3} = x^{2} + 3 x + 9$
15811	求解x	\|-2\|x=4	$\| - 2 \| x = 4$
15812	求解x	12/(x^2-16)-24/(x-4)=3	$\frac{12}{x^{2} - 16} - \frac{24}{x - 4} = 3$
15813	求解x	(x+8)(x-5)=9	$(x + 8) (x - 5) = 9$
15814	求解v	v=5i-2j	$v = 5 i - 2 j$
15815	求解x	(tan(x)-1)(sec(x)-1)=0	$(\tan (x) - 1) (\sec (x) - 1) = 0$
15816	求解x	(1.45)^x=25	${(1.45)}^{x} = 25$
15817	求解x	(tan(x+1))(cos(x-1))=0	$(\tan (x + 1)) (\cos (x - 1)) = 0$
15818	求解v	4v^2=-8v-3	$4 v^{2} = - 8 v - 3$
15819	求解t	sec(t)-((cos(t))/(1+sin(t)))=tan(t)	$\sec (t) - (\frac{\cos (t)}{1 + \sin (t)}) = \tan (t)$
15820	Trovare il Seno Dato il Punto	(-7,24)	$(- 7, 24)$
15821	求解w	4w^2+7w=-3	$4 w^{2} + 7 w = - 3$
15822	Trovare il Valore Esatto	arcsin(tan(pi/4))	$\arcsin (\tan (\frac{π}{4}))$
15823	求解t	140=140-8t-16t^2	$140 = 140 - 8 t - 16 t^{2}$
15824	求解s	(11s+9)(2s-6)=0	$(11 s + 9) (2 s - 6) = 0$
15825	求解t	4.9t^2-30sin(x)t=0	$4.9 t^{2} - 30 \sin (x) t = 0$
15826	求解t	1000e^(0.04t)=4000	$1000 e^{0.04 t} = 4000$
15827	求解t	d=3cos(pit-pi/2)	$d = 3 \cos (π t - \frac{π}{2})$
15828	求解r	r = square root of 2^2+1^2	$r = \sqrt{2^{2} + 1^{2}}$
15829	求解t	h=-25t^2+ct+d	$h = - 25 t^{2} + c t + d$
15830	求解t	h=-5t^2+92t+16	$h = - 5 t^{2} + 92 t + 16$
15831	求解u	(u-1)^(4/3)=-3	${(u - 1)}^{\frac{4}{3}} = - 3$
15832	求解u	u^2-7u+1=0	$u^{2} - 7 u + 1 = 0$
15833	求解v	v=-6i-3j	$v = - 6 i - 3 j$
15834	求解x	4^x-6=4	$4^{x} - 6 = 4$
15835	求解x	6/(2x-2)+1/2=3/(x-1)	$\frac{6}{2 x - 2} + \frac{1}{2} = \frac{3}{x - 1}$
15836	求解x	7/(x+1)-5/2=4/(3x+3)	$\frac{7}{x + 1} - \frac{5}{2} = \frac{4}{3 x + 3}$
15837	求解x	8^(2x)+8^x-42=0	$8^{2 x} + 8^{x} - 42 = 0$
15838	Trovare l'Angolo di Riferimento	-(17pi)/6	$- \frac{17 π}{6}$
15839	Valutare	sin(-180)	$\sin (- 180)$
15840	求解x	\|x+3\|-9=2x	$\| x + 3 \| - 9 = 2 x$
15841	Valutare	cos(arcsin(1/2))	$\cos (\arcsin (\frac{1}{2}))$
15842	求解x	(2.718)^(2x)+3(2.718)^x=-2	${(2.718)}^{2 x} + 3 {(2.718)}^{x} = - 2$
15843	求解x	\|2x-1\|+4=8	$\| 2 x - 1 \| + 4 = 8$
15844	求解x	\|2x-1\|=9	$\| 2 x - 1 \| = 9$
15845	求解x	1/2+5/(x-2)=3	$\frac{1}{2} + \frac{5}{x - 2} = 3$
15846	求解x	2/(x+2)=4/x	$\frac{2}{x + 2} = \frac{4}{x}$
15847	求解x	3^x-3^(x-2)=8	$3^{x} - 3^{x - 2} = 8$
15848	求解x	(3x+5)/(6x-5)=(x-5)/(2x+2)	$\frac{3 x + 5}{6 x - 5} = \frac{x - 5}{2 x + 2}$
15849	求解x	3/4x^2-2x+1/2=0	$\frac{3}{4} x^{2} - 2 x + \frac{1}{2} = 0$
15850	求解?	2sin(theta)cos(theta)+ radice quadrata di 2cos(theta)=0	$2 \sin (θ) \cos (θ) + \sqrt{2} \cos (θ) = 0$
15851	求解x	radice quadrata di 2cos(x)sin(x)-cos(x)=0	$\sqrt{2} \cos (x) \sin (x) - \cos (x) = 0$
15852	求解x	radice quadrata di 3*cos(x)^2-2sin(x)=0	$\sqrt{3} \cdot \cos^{2} (x) - 2 \sin (x) = 0$
15853	求解x	radice quadrata di 3x-2+ radice quadrata di 11+x=-1	$\sqrt{3 x - 2} + \sqrt{11 + x} = - 1$
15854	求解x	radice quadrata di cos(x)=2cos(x)-1	$\sqrt{\cos (x)} = 2 \cos (x) - 1$
15855	求解x	e^(2.5x)=1+3	$e^{2.5 x} = 1 + 3$
15856	求解x	cot(x)^2-tan(x)^2=1	$\cot^{2} (x) - \tan^{2} (x) = 1$
15857	求解x	cot(x)^2+3csc(x)=-3	$\cot^{2} (x) + 3 \csc (x) = - 3$
15858	求解x	(cos(x)tan(x)-sin(x))/(cot(x))=0	$\frac{\cos (x) \tan (x) - \sin (x)}{\cot (x)} = 0$
15859	Trovare il Valore Esatto	cos(2)pi	$\cos (2) π$
15860	求解x	sin(2x)^2-3sin(2x)+1=0	$\sin^{2} (2 x) - 3 \sin (2 x) + 1 = 0$
15861	求解x	sin(x)^2+sin(x)=2	$\sin^{2} (x) + \sin (x) = 2$
15862	求解x	sin(5x)^2=-3/4	$\sin^{2} (5 x) = - \frac{3}{4}$
15863	求解x	sin(x)^2+4sin(x)+3=0	$\sin^{2} (x) + 4 \sin (x) + 3 = 0$
15864	求解y	y=arccot(- radice quadrata di 3/3)	$y = arccot (- \sqrt{\frac{3}{3}})$
15865	求解y	y=arccot(-( radice quadrata di 3)/3)	$y = arccot (- \frac{\sqrt{3}}{3})$
15866	求解y	y=arcsec(-1)	$y = arcsec (- 1)$
15867	求解y	y=arcsin(( radice quadrata di 2)/2)	$y = \arcsin (\frac{\sqrt{2}}{2})$
15868	求解y	y=arccos(- radice quadrata di 3/2)	$y = \arccos (- \sqrt{\frac{3}{2}})$
15869	求解y	y=arccos(0.44624593)	$y = \arccos (0.4\overline{462459})$
15870	求解y	y=90sin(1.1(16)+0.8)+25	$y = 90 \sin (1.1 (16) + 0.8) + 25$
15871	求解y	y=3sin(4pi)	$y = 3 \sin (4 π)$
15872	求解y	y=3x-2	$y = 3 x - 2$
15873	求解y	y=-4sin(0)	$y = - 4 \sin (0)$
15874	求解y	y=2sec(pi/2)	$y = 2 \sec (\frac{π}{2})$
15875	求解y	y=3csc(x/2)	$y = 3 \csc (\frac{x}{2})$
15876	求解y	y=-2sin(2pi)	$y = - 2 \sin (2 π)$
15877	Trovare il Valore Esatto	sin((13pi)/12)	$\sin (\frac{13 π}{12})$
15878	求解y	y=cos(arcsin(2/3))	$y = \cos (\arcsin (\frac{2}{3}))$
15879	求解y	y=cos(x)	$y = \cos (x)$
15880	求解y	y=cot(2pi)	$y = \cot (2 π)$
15881	求解y	y=sec(x/2-pi/3)	$y = \sec (\frac{x}{2} - \frac{π}{3})$
15882	求解y	y=cos(0)	$y = \cos (0)$
15883	求解y	y=sin(1/4)	$y = \sin (\frac{1}{4})$
15884	Trovare l'Angolo di Riferimento	-216 gradi	$- 216 °$
15885	Trovare l'Angolo di Riferimento	169 gradi	$169 °$
15886	求解z	5^((z+1)/3)=25^(1/z)	$5^{\frac{z + 1}{3}} = 25^{\frac{1}{z}}$
15887	求解y	y=tan(x-pi)+2	$y = \tan (x - π) + 2$
15888	求解z	z^3+8=0	$z^{3} + 8 = 0$
15889	求解z	2z^2+7z-15=0	$2 z^{2} + 7 z - 15 = 0$
15890	求解z	30+44i=6+5iz	$30 + 44 i = 6 + 5 i z$
15891	求解z	z^2=-8+8i radice quadrata di 3	$z^{2} = - 8 + 8 i \sqrt{3}$
15892	求解z	cos(z)=0.9613	$\cos (z) = 0.9613$
15893	求解z	logaritmo di 3z=2	$\log (3 z) = 2$
15894	求解z	tan(0.839)=z/500	$\tan (0.839) = \frac{z}{500}$
15895	求解y	y=arcsec( radice quadrata di 2)	$y = arcsec (\sqrt{2})$
15896	求解y	y = log base 5 of 130	$y = \log_{5} (130)$
15897	求解y	y=arcsin(sin((3pi)/4))	$y = \arcsin (\sin (\frac{3 π}{4}))$
15898	求解y	y=-11	$y = - 11$
15899	求解y	y=15tan(30)	$y = 15 \tan (30)$
15900	求解y	4y^2-10x^2-40x-8y-76=0	$4 y^{2} - 10 x^{2} - 40 x - 8 y - 76 = 0$