Mathway | Problèmes fréquents

Problèmes fréquents

Rang	Matière	Problème	Problème de formatage
10801	Resolva para ?	x=arccos(0.9284)	$x = \arccos (0.9284)$
10802	Resolva para ?	x=arctan(57/82)	$x = \arctan (\frac{57}{82})$
10803	Resolva para ?	tan(x)^2-8sec(x)=8	$\tan^{2} (x) - 8 \sec (x) = 8$
10804	Resolva para ?	sin(x)^2=9(cos(-x)-1)	$\sin^{2} (x) = 9 (\cos (- x) - 1)$
10805	Resolva para ?	sin(x)^2=1/2	$\sin^{2} (x) = \frac{1}{2}$
10806	Resolva para ?	sin(x)^2=1/4	$\sin^{2} (x) = \frac{1}{4}$
10807	Resolva para ?	sec(x)^2=9	$\sec^{2} (x) = 9$
10808	Resolva para ?	sec(x)^2-1=0	$\sec^{2} (x) - 1 = 0$
10809	Resolva para ?	(tan(x)+cot(x))cos(x)=csc(x)	$(\tan (x) + \cot (x)) \cos (x) = \csc (x)$
10810	Resolva para ?	cos(x)^2-cos(x)-20=0	$\cos^{2} (x) - \cos (x) - 20 = 0$
10811	Resolva para ?	cos(x)^2-cos(x)-30=0	$\cos^{2} (x) - \cos (x) - 30 = 0$
10812	Resolva para ?	cos(x)^2-cos(x)-6=0	$\cos^{2} (x) - \cos (x) - 6 = 0$
10813	Resolva para ?	arccot(-1)	$arccot (- 1)$
10814	Resolva para ?	cos(x)^2=1/4	$\cos^{2} (x) = \frac{1}{4}$
10815	Resolva para ?	r^2=16cos(2x)	$r^{2} = 16 \cos (2 x)$
10816	Resolva para ?	cot(x)+ racine carrée de 3=0	$\cot (x) + \sqrt{3} = 0$
10817	Resolva para ?	cos(2x)=3cos(x-2)	$\cos (2 x) = 3 \cos (x - 2)$
10818	Resolva para ?	cos(2x)=9sin(x-4)	$\cos (2 x) = 9 \sin (x - 4)$
10819	Resolva para ?	cot(x)*sec(x)=csc(x)	$\cot (x) \cdot \sec (x) = \csc (x)$
10820	Resolva para ?	cot(x)=1/( racine carrée de 3)	$\cot (x) = \frac{1}{\sqrt{3}}$
10821	Resolva para ?	cos(2x)=0	$\cos (2 x) = 0$
10822	Resolva para x em Graus	tan(x) = square root of 3	$\cos (2 x) = 2 - 2 \sin^{2} (x)$
10823	Resolva para ?	cot(x)=-0.542	$\cot (x) = - 0.542$
10824	Resolva para ?	cot(x)=-3/4	$\cot (x) = - \frac{3}{4}$
10825	Resolva para ?	cot(x)=4/3	$\cot (x) = \frac{4}{3}$
10826	Resolva para ?	cot(x)=5	$\cot (x) = 5$
10827	Resolva para ?	cos(x/3-pi/4)=1/2	$\cos (\frac{x}{3} - \frac{π}{4}) = \frac{1}{2}$
10828	Resolva para ?	cos(pi/2+x)=-sin(x)	$\cos (\frac{π}{2} + x) = - \sin (x)$
10829	Resolva para ?	cos(2x)=3/5	$\cos (2 x) = \frac{3}{5}$
10830	Resolva para x	x^3-3x^2-3x+9=0	$x^{3} - 3 x^{2} - 3 x + 9 = 0$
10831	Resolva para ?	cos(2x)+cos(x)=0	$\cos (2 x) + \cos (x) = 0$
10832	Resolva para ?	cos(x)=-8/17	$\cos (x) = - \frac{8}{17}$
10833	Resolva para ?	cos(x)=-3	$\cos (x) = - 3$
10834	Resolva para ?	cos(x)sin(x)-2cos(x)=0	$\cos (x) \sin (x) - 2 \cos (x) = 0$
10835	Resolva para ?	cos(x)sin(x)-3cos(x)=0	$\cos (x) \sin (x) - 3 \cos (x) = 0$
10836	Resolva para ?	7-11sin(x)=2cos(x)^2	$7 - 11 \sin (x) = 2 \cos^{2} (x)$
10837	Resolva para ?	8cos(x)^2=4	$8 \cos^{2} (x) = 4$
10838	Resolva para ?	6sin(x)+3=0	$6 \sin (x) + 3 = 0$
10839	Resolva para ?	7sin(x)^2-36sin(x)+5=0	$7 \cdot \sin^{2} (x) - 36 \cdot \sin (x) + 5 = 0$
10840	Resolva para ?	7sin(x)^2-16sin(x)+9=0	$7 \sin^{2} (x) - 16 \sin (x) + 9 = 0$
10841	Resolva para ?	cos(x)(2sin(x)+1)=0	$\cos (x) (2 \sin (x) + 1) = 0$
10842	Resolva para ?	arccos(x)=( racine carrée de 3/2)	$\arccos (x) = (\sqrt{\frac{3}{2}})$
10843	Resolva para ?	9(1-cos(x))=sin(x)^2	$9 (1 - \cos (x)) = \sin^{2} (x)$
10844	Resolva para ?	cos(x)=0.6557	$\cos (x) = 0.6557$
10845	Resolva para ?	cos(x)=-3/7	$\cos (x) = - \frac{3}{7}$
10846	Resolva para ?	cos(x)=8/9	$\cos (x) = \frac{8}{9}$
10847	Resolva para ?	cos(x)=84/85	$\cos (x) = \frac{84}{85}$
10848	Resolva para ?	cos(x)=0.24	$\cos (x) = 0.24$
10849	Resolva para ?	cos(x)=0.28	$\cos (x) = 0.28$
10850	Resolva para ?	cos(x)=1/6	$\cos (x) = \frac{1}{6}$
10851	Resolva para ?	cos(x)=1/7	$\cos (x) = \frac{1}{7}$
10852	Resolva para ?	cos(x)=1/3	$\cos (x) = \frac{1}{3}$
10853	Resolva para ?	cos(x)=-2/3	$\cos (x) = - \frac{2}{3}$
10854	Resolva para ?	cos(x)=1/5	$\cos (x) = \frac{1}{5}$
10855	Resolva para ?	cos(x)=( racine carrée de 15)/4-pi/6	$\cos (x) = \frac{\sqrt{15}}{4} - \frac{π}{6}$
10856	Resolva para ?	2=xpi/1805	$2 = x \cdot \frac{π}{180} \cdot 5$
10857	Resolva para ?	2cos(2x)=-6cos(x)-4	$2 \cos (2 x) = - 6 \cos (x) - 4$
10858	Resolva para ?	2cos(x-1)=0	$2 \cos (x - 1) = 0$
10859	Resolva para ?	2cos(x) = square root of 3	$2 \cos (x) = \sqrt{3}$
10860	Resolva para ?	2cos(x)^2+3cos(x)+1=0	$2 \cos^{2} (x) + 3 \cos (x) + 1 = 0$
10861	Resolva para ?	2x=pi/6	$2 x = \frac{π}{6}$
10862	Resolva para ?	2cos(x)^2-7cos(x)+3=0	$2 \cos^{2} (x) - 7 \cos (x) + 3 = 0$
10863	Resolva para ?	2sin(x)^2+9sin(x)+7=0	$2 \sin^{2} (x) + 9 \sin (x) + 7 = 0$
10864	Resolva para ?	2sin(x)^2+3sin(x)=-1	$2 \sin^{2} (x) + 3 \sin (x) = - 1$
10865	Resolva para ?	2x=arcsin(0.6152)	$2 x = \arcsin (0.6152)$
10866	Resolva para ?	racine carrée de 3sin(x)-cos(x)=0	$\sqrt{3} \sin (x) - \cos (x) = 0$
10867	Resolva para ?	10=1/2*((4)(5 racine carrée de 2)sin(x))	$10 = \frac{1}{2} \cdot ((4) (5 \sqrt{2}) \sin (x))$
10868	Resolva para ?	3sin(x)-5=-2sin(x)	$3 \sin (x) - 5 = - 2 \sin (x)$
10869	Resolva para ?	2sin(x/3)+ racine carrée de 3=0	$2 \sin (\frac{x}{3}) + \sqrt{3} = 0$
10870	Resolva para ?	3+csc(x)=5/(3-2sin(x))	$3 + \csc (x) = \frac{5}{3 - 2 \sin (x)}$
10871	Resolva para ?	2sin(x)+6=7	$2 \sin (x) + 6 = 7$
10872	Resolva para ?	2sin(x+4)=3	$2 \sin (x + 4) = 3$
10873	Resolva para ?	3-3sin(x)=6cos(x)^2	$3 - 3 \sin (x) = 6 \cos^{2} (x)$
10874	Resolva para ?	4sin(x)^2-1=0	$4 \sin^{2} (x) - 1 = 0$
10875	Resolva para ?	4cos(x)+1=0	$4 \cos (x) + 1 = 0$
10876	Resolva para ?	4sin(x)cos(x)+2sin(x)-2cos(x)-1=0	$4 \sin (x) \cos (x) + 2 \sin (x) - 2 \cos (x) - 1 = 0$
10877	Resolva para ?	4-sin(x)=cos(2x)	$4 - \sin (x) = \cos (2 x)$
10878	Resolva para ?	4cos(x-2)=0	$4 \cos (x - 2) = 0$
10879	Resolva para ?	4sin(x+5)=7	$4 \sin (x + 5) = 7$
10880	Resolva para ?	4sin(x+7)=5	$4 \sin (x + 7) = 5$
10881	Resolva para ?	5 racine carrée de 2sin(x)+4=-1	$5 \sqrt{2} \sin (x) + 4 = - 1$
10882	Resolva para ?	5cos(x)=-1	$5 \cos (x) = - 1$
10883	Resolva para ?	5r-15rcos(x)=75	$5 r - 15 r \cos (x) = 75$
10884	Resolva para ?	5sin(x)-1=0	$5 \sin (x) - 1 = 0$
10885	Resolva para A	A(20)=800e^(-0.0244*20)	$A (20) = 800 e^{- 0.0244 \cdot 20}$
10886	Resolva para a	a = square root of 8^2-3^2	$a = \sqrt{8^{2} - 3^{2}}$
10887	Resolva para A	A=150000e^(-0.142*36)	$A = 150000 e^{- 0.142 \cdot 36}$
10888	Resolva para A	A=150000e^(-0.142*84)	$A = 150000 e^{- 0.142 \cdot 84}$
10889	Resolva para a	cos(a)=(- racine carrée de 2)/2	$\cos (a) = \frac{- \sqrt{2}}{2}$
10890	Resolva para a	v=2(ab+bc+ca)	$v = 2 (a b + b c + c a)$
10891	Resolva para a	v=-3.6 racine carrée de 2ad	$v = - 3.6 \sqrt{2 a d}$
10892	Resolva para a1	a1=(21-1)/(1^2+1)	$a \cdot 1 = \frac{2 \cdot 1 - 1}{1^{2} + 1}$
10893	Resolva para A	cos(A)=((96)^2+(72)^2-(64)^2)/(29672)	$\cos (A) = \frac{{(96)}^{2} + {(72)}^{2} - {(64)}^{2}}{2 \cdot 96 \cdot 72}$
10894	Resolva para a6	a6=-0.2(6-1)4.6	$a \cdot 6 = - 0.2 (6 - 1) \cdot 4.6$
10895	Resolva para a7	a*7=-3(2)^(7-1)	$a \cdot 7 = - 3 {(2)}^{7 - 1}$
10896	Resolva para b	(b/3)^4=10	${(\frac{b}{3})}^{4} = 10$
10897	Resolva para b	(7a-5)-15i=37-3bi	$(7 a - 5) - 15 i = 37 - 3 b i$
10898	Resolva para a	sin(20)*56=sin(118)a	$\sin (20) \cdot 56 = \sin (118) a$
10899	Resolva para b	\|2b+1\|=11	$\| 2 b + 1 \| = 11$
10900	Resolva para b	\|3b+4\|=11	$\| 3 b + 4 \| = 11$