Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
1701	Simplify	cos(pi/2-x)	$\cos (\frac{π}{2} - x)$
1702	Simplify	cos((5pi)/12)cos(pi/4)+sin((5pi)/12)sin(pi/4)	$\cos (\frac{5 π}{12}) \cos (\frac{π}{4}) + \sin (\frac{5 π}{12}) \sin (\frac{π}{4})$
1703	Simplify	cos((7pi)/12)cos((5pi)/12)+sin((7pi)/12)sin((5pi)/12)	$\cos (\frac{7 π}{12}) \cos (\frac{5 π}{12}) + \sin (\frac{7 π}{12}) \sin (\frac{5 π}{12})$
1704	Simplify	cos((7pi)/4)	$\cos (\frac{7 π}{4})$
1705	Simplify	cos(120)	$\cos (120)$
1706	Simplify	cos(105)	$\cos (105)$
1707	Simplify	sin(arccos(-( square root of 3)/2))	$\sin (\arccos (- \frac{\sqrt{3}}{2}))$
1708	Simplify	arcsin(-1/( square root of 2))	$\arcsin (- \frac{1}{\sqrt{2}})$
1709	Find the Other Trig Values in Quadrant I	sin(theta)=3/5	$\sin (θ) = \frac{3}{5}$
1710	Find the Other Trig Values in Quadrant I	cos(x)=1/14	$\cos (x) = \frac{1}{14}$
1711	Find the Other Trig Values in Quadrant II	cos(x)=-4/5	$\cos (x) = - \frac{4}{5}$
1712	Find the Other Trig Values in Quadrant II	cos(x)=-2/3	$\cos (x) = - \frac{2}{3}$
1713	Find the Other Trig Values in Quadrant II	cos(x)=-12/13	$\cos (x) = - \frac{12}{13}$
1714	Find the Other Trig Values in Quadrant I	sin(x)=24/25	$\sin (x) = \frac{24}{25}$
1715	Find the Other Trig Values in Quadrant I	sin(x)=3/5	$\sin (x) = \frac{3}{5}$
1716	Find the Other Trig Values in Quadrant I	sec(theta)=5	$\sec (θ) = 5$
1717	Find the Other Trig Values in Quadrant II	tan(theta)=- square root of 3	$\tan (θ) = - \sqrt{3}$
1718	Evaluate	tan(390 degrees )	$\tan (390 °)$
1719	Find All Complex Number Solutions	z=3i	$z = 3 i$
1720	Find All Complex Number Solutions	z=-5-4i	$z = - 5 - 4 i$
1721	Find All Complex Number Solutions	z=-6	$z = - 6$
1722	Solve for x	sin(2x)=-sin(x)	$\sin (2 x) = - \sin (x)$
1723	Solve for x	2sin(x)^2=1	$2 \sin^{2} (x) = 1$
1724	Solve for x	2cos(x)- square root of 2=0	$2 \cos (x) - \sqrt{2} = 0$
1725	Solve for x	2 natural log of x=2	$2 \ln (x) = 2$
1726	Solve for x	2cos(x)^2- square root of 3cos(x)=0	$2 \cos^{2} (x) - \sqrt{3} \cos (x) = 0$
1727	Solve for x	2cos(x) = square root of 3	$2 \cos (x) = \sqrt{3}$
1728	Solve for x	3^y=x	$3^{y} = x$
1729	Solve for x	cos(x)^2-sin(x)^2=1-2sin(x)^2	$\cos^{2} (x) - \sin^{2} (x) = 1 - 2 \sin^{2} (x)$
1730	Solve for v	v=-2i-2j	$v = - 2 i - 2 j$
1731	Solve for ?	cos(x)=-4/5	$\cos (x) = - \frac{4}{5}$
1732	Solve for ?	2sin(x)+6=5	$2 \sin (x) + 6 = 5$
1733	Solve for ?	tan(x)^2=3	$\tan^{2} (x) = 3$
1734	Solve for ?	sin(x)^2-cos(x)^2=1+cos(x)	$\sin^{2} (x) - \cos^{2} (x) = 1 + \cos (x)$
1735	Solve for ?	x=pi/4	$x = \frac{π}{4}$
1736	Solve for ?	tan(x)=3/4	$\tan (x) = \frac{3}{4}$
1737	Solve for ?	sin(x)+1=0	$\sin (x) + 1 = 0$
1738	Solve for ?	cos(x)=5/13	$\cos (x) = \frac{5}{13}$
1739	Solve for ?	tan(2x)=-1	$\tan (2 x) = - 1$
1740	Simplify	(2pi)/(pi/4)	$\frac{2 π}{\frac{π}{4}}$
1741	Simplify	(1+tan(x))^2	${(1 + \tan (x))}^{2}$
1742	Simplify	(cos(x))/(sin(x))+(sin(x))/(cos(x))	$\frac{\cos (x)}{\sin (x)} + \frac{\sin (x)}{\cos (x)}$
1743	Simplify	cos(x)^2+cos(x)^2cot(x)^2	$\cos^{2} (x) + \cos^{2} (x) \cot^{2} (x)$
1744	Simplify	arcsin(1)	$\arcsin (1)$
1745	Simplify	(sin(x))/(1+cos(x))	$\frac{\sin (x)}{1 + \cos (x)}$
1746	Find the Exact Value	tan(-45 degrees )	$\tan (- 45 °)$
1747	Simplify	(1-cos(x)^2)(csc(x))	$(1 - \cos^{2} (x)) (\csc (x))$
1748	Simplify	(tan(x)+sec(x))(tan(x)-sec(x))	$(\tan (x) + \sec (x)) (\tan (x) - \sec (x))$
1749	Solve for x	y=sin(x-pi)	$y = \sin (x - π)$
1750	Solve for z	z=2+5i	$z = 2 + 5 i$
1751	Evaluate	150*pi/180	$150 \cdot \frac{π}{180}$
1752	Evaluate	pi/4+pi/2	$\frac{π}{4} + \frac{π}{2}$
1753	Evaluate	(9pi)/4	$\frac{9 π}{4}$
1754	Find the Value Using the Unit Circle	tan(pi/3)	$\tan (\frac{π}{3})$
1755	Find the Value Using the Unit Circle	sin(pi/6)	$\sin (\frac{π}{6})$
1756	Find the Value Using the Unit Circle	cos(75)	$\cos (75)$
1757	Find the Exact Value	cos(pi/5)	$\cos (\frac{π}{5})$
1758	Find the Exact Value	sec((3pi)/2)	$\sec (\frac{3 π}{2})$
1759	Find the Exact Value	cos(37)	$\cos (37)$
1760	Find the Exact Value	sin(-315 degrees )	$\sin (- 315 °)$
1761	Find the Exact Value	cos(24)	$\cos (24)$
1762	Find the Exact Value	cos(42)	$\cos (42)$
1763	Find the Exact Value	cot(90)	$\cot (90)$
1764	Find the Exact Value	cos(47)	$\cos (47)$
1765	Find the Exact Value	cot(360)	$\cot (360)$
1766	Find the Exact Value	cos(arcsin(2/3))	$\cos (\arcsin (\frac{2}{3}))$
1767	Find the Exact Value	cos(arcsin(4/5))	$\cos (\arcsin (\frac{4}{5}))$
1768	Find the Exact Value	csc(-150)	$\csc (- 150)$
1769	Find the Exact Value	cot(600)	$\cot (600)$
1770	Find the Exact Value	tan(270 degrees )	$\tan (270 °)$
1771	Find the Exact Value	arccsc(2)	$arccsc (2)$
1772	Find the Exact Value	cot(81)	$\cot (81)$
1773	Find the Exact Value	cot(420)	$\cot (420)$
1774	Find the Exact Value	sin((17pi)/3)	$\sin (\frac{17 π}{3})$
1775	Find the Exact Value	sin(1/4)	$\sin (\frac{1}{4})$
1776	Find the Exact Value	tan(-240 degrees )	$\tan (- 240 °)$
1777	Find the Exact Value	sec(pi/10)	$\sec (\frac{π}{10})$
1778	Find the Exact Value	tan(75 degrees )	$\tan (75 °)$
1779	Find the Exact Value	sec(-(11pi)/6)	$\sec (- \frac{11 π}{6})$
1780	Find the Exact Value	csc(-630)	$\csc (- 630)$
1781	Find the Exact Value	cos(-180 degrees )	$\cos (- 180 °)$
1782	Find the Exact Value	sin(8/17)	$\sin (\frac{8}{17})$
1783	Find the Exact Value	sin((5pi)/8)	$\sin (\frac{5 π}{8})$
1784	Find the Exact Value	sin(6/10)	$\sin (\frac{6}{10})$
1785	Find the Exact Value	sin(arccos(3/5))	$\sin (\arccos (\frac{3}{5}))$
1786	Find the Exact Value	cos(-30 degrees )	$\cos (- 30 °)$
1787	Find the Exact Value	tan(67)	$\tan (67)$
1788	Find the Exact Value	tan(65)	$\tan (65)$
1789	Find the Exact Value	cos(-pi/2)	$\cos (- \frac{π}{2})$
1790	Find the Exact Value	sin(390)	$\sin (390)$
1791	Find the Exact Value	sin(pi/12)	$\sin (\frac{π}{12})$
1792	Find the Exact Value	csc(210 degrees )	$\csc (210 °)$
1793	Find the Exact Value	csc(-30 degrees )	$\csc (- 30 °)$
1794	Find the Exact Value	tan((15pi)/4)	$\tan (\frac{15 π}{4})$
1795	Find the Exact Value	tan((13pi)/3)	$\tan (\frac{13 π}{3})$
1796	Find the Exact Value	tan(5/12)	$\tan (\frac{5}{12})$
1797	Find the Exact Value	arccsc(-2)	$arccsc (- 2)$
1798	Find the Exact Value	sin(480)	$\sin (480)$
1799	Find the Exact Value	sin(43)	$\sin (43)$
1800	Find the Exact Value	sin(54)	$\sin (54)$