Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
29001	Solve by Graphing	cos(x)=-0.9	$\cos (x) = - 0.9$
29002	Solve by Graphing	7x-8=0	$7 x - 8 = 0$
29003	Solve by Graphing	8(1-cos(x))=sin(x)^2	$8 (1 - \cos (x)) = \sin^{2} (x)$
29004	Solve by Graphing	8.3-7.2(7.5x-6.2)=0	$8.3 - 7.2 (7.5 x - 6.2) = 0$
29005	Solve by Graphing	8cos(x)^2sin(x)-4cos(x)^2=0	$8 \cos^{2} (x) \sin (x) - 4 \cos^{2} (x) = 0$
29006	Solve by Graphing	8sec(x)^2-8sec(x)=16	$8 \sec^{2} (x) - 8 \sec (x) = 16$
29007	Solve by Graphing	8+ square root of 2x-1=15	$8 + \sqrt{2} x - 1 = 15$
29008	Solve by Graphing	81x^2-16=0	$81 x^{2} - 16 = 0$
29009	Solve by Graphing	8-3x=2	$8 - 3 x = 2$
29010	Solve by Graphing	8cos(2x)+7cos(2x)-1=0	$8 \cos (2 x) + 7 \cos (2 x) - 1 = 0$
29011	Solve by Graphing	8sin(x)-4csc(x)=0	$8 \sin (x) - 4 \csc (x) = 0$
29012	Solve by Graphing	8sin(3x)+5=0	$8 \sin (3 x) + 5 = 0$
29013	Solve by Graphing	8sin(x+12)=16	$8 \sin (x + 12) = 16$
29014	Solve by Graphing	8tan(A)=3cos(A)	$8 \tan (A) = 3 \cos (A)$
29015	Solve by Graphing	8x-(5x-7)=28	$8 x - (5 x - 7) = 28$
29016	Solve by Graphing	9x^2-36=0	$9 x^{2} - 36 = 0$
29017	Solve by Graphing	9=-5cos(2)t+8sin(2)t	$9 = - 5 \cos (2) t + 8 \sin (2) t$
29018	Solve by Graphing	9sin(3x)+8=0	$9 \sin (3 x) + 8 = 0$
29019	Solve by Graphing	9tan(x)sin(x-9)tan(x)=0	$9 \tan (x) \sin (x - 9) \tan (x) = 0$
29020	Solve by Graphing	9x-45=0	$9 x - 45 = 0$
29021	Solve by Graphing	a*17=(-1)^(17-1)(17(17-3))	$a \cdot 17 = {(- 1)}^{17 - 1} (17 (17 - 3))$
29022	Solve by Graphing	a=195^2	$a = 195^{2}$
29023	Solve by Graphing	a=13tan(75)	$a = 13 \tan (75)$
29024	Solve by Graphing	a=2462	$a = 2462$
29025	Solve by Graphing	arccos(-2/3)	$\arccos (- \frac{2}{3})$
29026	Solve by Graphing	arccos(x)=arccos(7/25-arcsin(24/25))	$\arccos (x) = \arccos (\frac{7}{25} - \arcsin (\frac{24}{25}))$
29027	Solve by Graphing	arccos(x)=arccsc(8/3)	$\arccos (x) = arccsc (\frac{8}{3})$
29028	Solve by Graphing	arccsc(x)=arccos(1/x)	$arccsc (x) = \arccos (\frac{1}{x})$
29029	Solve by Graphing	arcsin(sin(x))=x	$\arcsin (\sin (x)) = x$
29030	Solve by Graphing	arcsin(x)=arccos(12/13)	$\arcsin (x) = \arccos (\frac{12}{13})$
29031	Solve by Graphing	b=arccos(5.27245898)	$b = \arccos (5.2\overline{724589})$
29032	Solve by Graphing	b = square root of (56)2+(40)2-25640cos(22)	$b = \sqrt{(56) \cdot 2} + (40) \cdot 2 - 2 \cdot 56 \cdot 40 \cos (22)$
29033	Solve by Graphing	b=(sin(48.9)*31.3)/(sin(111.4))	$b = \frac{\sin (48.9) \cdot 31.3}{\sin (111.4)}$
29034	Solve by Graphing	cos(x)(sec(x)-cos(x))=sin(x)^2	$\cos (x) (\sec (x) - \cos (x)) = \sin^{2} (x)$
29035	Solve by Graphing	cos(x)*(sec(x)-cos(x))=sin(x)^2	$\cos (x) \cdot (\sec (x) - \cos (x)) = \sin^{2} (x)$
29036	Solve by Graphing	cos(x)*csc(x)=cot(x)	$\cos (x) \cdot \csc (x) = \cot (x)$
29037	Solve by Graphing	cos(x)-cos(2x)=0	$\cos (x) - \cos (2 x) = 0$
29038	Solve by Graphing	cos(x)=8/17	$\cos (x) = \frac{8}{17}$
29039	Solve by Graphing	cos(x)=-0.14	$\cos (x) = - 0.14$
29040	Solve by Graphing	cos(x)=-0.5592	$\cos (x) = - 0.5592$
29041	Solve by Graphing	cos(x)=-( square root of 2)/2	$\cos (x) = - \frac{\sqrt{2}}{2}$
29042	Solve by Graphing	cos((5pi)/3)=cos(pi/3)	$\cos (\frac{5 π}{3}) = \cos (\frac{π}{3})$
29043	Solve by Graphing	cos(x/2)+sin(x)=0	$\cos (\frac{x}{2}) + \sin (x) = 0$
29044	Solve by Graphing	cos(105)=cos(60)cos(45)-sin(60)sin(45)	$\cos (105) = \cos (60) \cos (45) - \sin (60) \sin (45)$
29045	Solve by Graphing	cos(150)=cos(120)cos(30)-sin(120)sin(30)	$\cos (150) = \cos (120) \cos (30) - \sin (120) \sin (30)$
29046	Solve by Graphing	cos(2)x+3cos(x)=1	$\cos (2) x + 3 \cos (x) = 1$
29047	Solve by Graphing	cos(2*45)=2cos(45)	$\cos (2 \cdot 45) = 2 \cos (45)$
29048	Solve by Graphing	cos(2x)-5sin(x)-3=0	$\cos (2 \cdot x) - 5 \cdot \sin (x) - 3 = 0$
29049	Solve by Graphing	cos(2x)+14sin(x)^2=10	$\cos (2 x) + 14 \sin^{2} (x) = 10$
29050	Solve by Graphing	cos(2x)+6sin(x)^2=4	$\cos (2 x) + 6 \sin^{2} (x) = 4$
29051	Solve by Graphing	cos(2x)+cos(x)=2	$\cos (2 x) + \cos (x) = 2$
29052	Solve by Graphing	cos(2x)+cos(4x)=0	$\cos (2 x) + \cos (4 x) = 0$
29053	Solve by Graphing	cos(2x)+cos(6x)=0	$\cos (2 x) + \cos (6 x) = 0$
29054	Solve by Graphing	cos(x)=1.5	$\cos (x) = 1.5$
29055	Solve by Graphing	cos(x)=135	$\cos (x) = 135$
29056	Solve by Graphing	cos(x)=sin(2/5)	$\cos (x) = \sin (\frac{2}{5})$
29057	Solve by Graphing	cos(x)-3=5cos(x)	$\cos (x) - 3 = 5 \cos (x)$
29058	Solve by Graphing	cos(x)=-1/4.3	$\cos (x) = - \frac{1}{4.3}$
29059	Solve by Graphing	cos(x)=-1/5.9	$\cos (x) = - \frac{1}{5.9}$
29060	Solve by Graphing	cos(x)=-1/5	$\cos (x) = - \frac{1}{5}$
29061	Solve by Graphing	cos(x)=1/(sec(x))cos(x)=1/2sec(x)=2	$\cos (x) = \frac{1}{\sec (x)} \cdot \cos (x) = \frac{1}{2} \cdot \sec (x) = 2$
29062	Solve by Graphing	cos(x)=17/25	$\cos (x) = \frac{17}{25}$
29063	Solve by Graphing	cos(x)=2/3	$\cos (x) = \frac{2}{3}$
29064	Solve by Graphing	cos(x)=-24/25	$\cos (x) = - \frac{24}{25}$
29065	Solve by Graphing	cos(x)=3/5	$\cos (x) = \frac{3}{5}$
29066	Solve by Graphing	cos(35)=12/t	$\cos (35) = \frac{12}{t}$
29067	Solve by Graphing	cos(3x)cos(5x)=cos(7x)cos(9x)	$\cos (3 x) \cos (5 x) = \cos (7 x) \cos (9 x)$
29068	Solve by Graphing	cos(4x)-cos(6x)=0	$\cos (4 x) - \cos (6 x) = 0$
29069	Solve by Graphing	cos(42.5)=10/x	$\cos (42.5) = \frac{10}{x}$
29070	Solve by Graphing	cos(45)=x/(12 square root of 2)	$\cos (45) = \frac{x}{12 \sqrt{2}}$
29071	Solve by Graphing	cos(47.7)=8.2/x	$\cos (47.7) = \frac{8.2}{x}$
29072	Solve by Graphing	cos(4x)+3=cos(2x)	$\cos (4 x) + 3 = \cos (2 x)$
29073	Solve by Graphing	cos(4x)=-0.5	$\cos (4 x) = - 0.5$
29074	Solve by Graphing	cos(2x)=sin(2x)	$\cos (2 x) = \sin (2 x)$
29075	Solve by Graphing	cos(2x)-cos(6x)=0	$\cos (2 x) - \cos (6 x) = 0$
29076	Solve by Graphing	cos(2x)-cos(x)=0	$\cos (2 x) - \cos (x) = 0$
29077	Solve by Graphing	cos(2x)cos(x)-sin(2x)sin(x)=( square root of 3)/2	$\cos (2 x) \cos (x) - \sin (2 x) \sin (x) = \frac{\sqrt{3}}{2}$
29078	Solve by Graphing	cos(2x)cos(x)-sin(2x)sin(x)=0	$\cos (2 x) \cos (x) - \sin (2 x) \sin (x) = 0$
29079	Solve by Graphing	cos(3x)=1	$\cos (3 x) = 1$
29080	Solve by Graphing	cos(3x)=-1	$\cos (3 x) = - 1$
29081	Solve by Graphing	cos(26)=24/x	$\cos (26) = \frac{24}{x}$
29082	Solve by Graphing	cos(2a)=-12/13	$\cos (2 a) = - \frac{12}{13}$
29083	Solve by Graphing	cos(2t)+3cos(t)=1	$\cos (2 t) + 3 \cos (t) = 1$
29084	Solve by Graphing	cos(2t)=1/2	$\cos (2 t) = \frac{1}{2}$
29085	Solve by Graphing	cos(2theta)=cos(theta)	$\cos (2 θ) = \cos (θ)$
29086	Solve by Graphing	cos(2x)+3sin(x)=-1	$\cos (2 x) + 3 \sin (x) = - 1$
29087	Solve by Graphing	cos(2x)+sin(x)=0	$\cos (2 x) + \sin (x) = 0$
29088	Solve by Graphing	cos(2x)=cos(x)	$\cos (2 x) = \cos (x)$
29089	Solve by Graphing	cos(2x)=(2cos(x))^2-1	$\cos (2 x) = {(2 \cos (x))}^{2} - 1$
29090	Solve by Graphing	cos(2x)=-( square root of 3)/2	$\cos (2 x) = - \frac{\sqrt{3}}{2}$
29091	Solve by Graphing	cos(2x)=-1/2	$\cos (2 x) = - \frac{1}{2}$
29092	Solve by Graphing	cos(2x)=-6cos(x)	$\cos (2 x) = - 6 \cos (x)$
29093	Solve by Graphing	4x=1024	$4 x = 1024$
29094	Solve by Graphing	4x=8	$4 x = 8$
29095	Solve by Graphing	4x-16=2x^2	$4 x - 16 = 2 x^{2}$
29096	Solve by Graphing	5(2x)=6	$5 (2 x) = 6$
29097	Solve by Graphing	5cos(b-5)^2sin(b)^2=10cos(b-5)^2	$5 \cos^{2} (b - 5) \sin^{2} (b) = 10 \cos^{2} (b - 5)$
29098	Solve by Graphing	5tan(x)^2-3tan(x)-1=0	$5 \tan^{2} (x) - 3 \tan (x) - 1 = 0$
29099	Solve by Graphing	5x^(-2/3)=80	$5 x^{- \frac{2}{3}} = 80$
29100	Solve by Graphing	5x^2+1x=4	$5 x^{2} + 1 x = 4$