Mathway | Popular Problems

Popular Problems

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