Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
19601	Verify the Identity	(cos(x))/(sec(x)-1)-(cos(x))/(sec(x)+1)=(2cos(x))/(tan(x)^2)	$\frac{\cos (x)}{\sec (x) - 1} - \frac{\cos (x)}{\sec (x) + 1} = \frac{2 \cos (x)}{\tan^{2} (x)}$
19602	Verify the Identity	(cos(x+1))/(tan(x)^2)=(cos(x))/(sec(x-1)^2)	$\frac{\cos (x + 1)}{\tan^{2} (x)} = \frac{\cos (x)}{\sec^{2} (x - 1)}$
19603	Verify the Identity	(cos(x+y))/(cos(x-y))=(1-tan(x)tan(y))/(1+tan(x)tan(y))	$\frac{\cos (x + y)}{\cos (x - y)} = \frac{1 - \tan (x) \tan (y)}{1 + \tan (x) \tan (y)}$
19604	Verify the Identity	(cos(x-y))/(cos(x)sin(y))=tan(x)cot(y)	$\frac{\cos (x - y)}{\cos (x) \sin (y)} = \tan (x) \cot (y)$
19605	Verify the Identity	cos(x)^4-sin(x)^4=cot(x)^2-1	$\cos^{4} (x) - \sin^{4} (x) = \cot^{2} (x) - 1$
19606	Verify the Identity	(cos(x)csc(x))/(cot(x)^2)=tan(x)	$\frac{\cos (x) \csc (x)}{\cot^{2} (x)} = \tan (x)$
19607	Verify the Identity	(cos(x)tan(x)-sin(x))/(cot(x))=0	$\frac{\cos (x) \tan (x) - \sin (x)}{\cot (x)} = 0$
19608	Find the Reference Angle	sin(135)	$\sin (135)$
19609	Find the Reference Angle	sin(-45)	$\sin (- 45)$
19610	Find the Reference Angle	tan(30)	$\tan (30)$
19611	Find the Reference Angle	tan(-330)	$\tan (- 330)$
19612	Find the Reference Angle	sin(330)	$\sin (330)$
19613	Find the Reference Angle	(22pi)/3	$\frac{22 π}{3}$
19614	Find the Reference Angle	sin(225)	$\sin (225)$
19615	Find the Reference Angle	-sin(30)	$- \sin (30)$
19616	Find the Reference Angle	-(11pi)/12	$- \frac{11 π}{12}$
19617	Find the Reference Angle	sec(1035.47)	$\sec (1035.47)$
19618	Find the Reference Angle	sec(120)	$\sec (120)$
19619	Find the Reference Angle	-50 degrees	$- 50 °$
19620	Find the Reference Angle	sec(495)	$\sec (495)$
19621	Find the Reference Angle	p/9	$\frac{p}{9}$
19622	Find the Reference Angle	csc(960)	$\csc (960)$
19623	Find the Reference Angle	-(9pi)/4	$- \frac{9 π}{4}$
19624	Find the Reference Angle	cos(-60)	$\cos (- 60)$
19625	Find the Reference Angle	cot(60)	$\cot (60)$
19626	Find the Reference Angle	csc((11pi)/6)	$\csc (\frac{11 π}{6})$
19627	Find the Reference Angle	cos(60)	$\cos (60)$
19628	Find the Reference Angle	-75 degrees	$- 75 °$
19629	Find the Reference Angle	cos(30)	$\cos (30)$
19630	Find the Reference Angle	cos(465)	$\cos (465)$
19631	Find the Reference Angle	cos(30-45)	$\cos (30 - 45)$
19632	Find the Reference Angle	cos(37)	$\cos (37)$
19633	Find the Reference Angle	91 degrees	$91 °$
19634	Find the Reference Angle	98 degrees	$98 °$
19635	Find the Reference Angle	960	$960$
19636	Find the Reference Angle	595 degrees	$595 °$
19637	Find the Reference Angle	553 degrees	$553 °$
19638	Find the Reference Angle	-555 degrees	$- 555 °$
19639	Find the Reference Angle	55 degrees	$55 °$
19640	Find the Reference Angle	550	$550$
19641	Find the Reference Angle	-560	$- 560$
19642	Find the Reference Angle	560 degrees	$560 °$
19643	Find the Reference Angle	565	$565$
19644	Find the Reference Angle	565 degrees	$565 °$
19645	Find the Reference Angle	-59	$- 59$
19646	Find the Reference Angle	-585	$- 585$
19647	Find the Reference Angle	-58 degrees	$- 58 °$
19648	Find the Reference Angle	580	$580$
19649	Find the Reference Angle	-570 degrees	$- 570 °$
19650	Find the Reference Angle	563	$563$
19651	Find the Reference Angle	576	$576$
19652	Find the Reference Angle	-610	$- 610$
19653	Find the Reference Angle	615	$615$
19654	Find the Reference Angle	620	$620$
19655	Find the Reference Angle	61	$61$
19656	Find the Reference Angle	63	$63$
19657	Find the Reference Angle	64	$64$
19658	Find the Reference Angle	640 degrees	$640 °$
19659	Find the Reference Angle	-660 degrees	$- 660 °$
19660	Find the Reference Angle	675 degrees	$675 °$
19661	Find the Reference Angle	68	$68$
19662	Find the Reference Angle	685	$685$
19663	Find the Reference Angle	675	$675$
19664	Find the Reference Angle	69 degrees	$69 °$
19665	Find the Reference Angle	650 degrees	$650 °$
19666	Find the Reference Angle	665 degrees	$665 °$
19667	Find the Reference Angle	81	$81$
19668	Find the Reference Angle	81 degrees	$81 °$
19669	Find the Reference Angle	-87	$- 87$
19670	Find the Reference Angle	870 degrees	$870 °$
19671	Find the Reference Angle	863	$863$
19672	Find the Reference Angle	890 degrees	$890 °$
19673	Find the Reference Angle	1170 degrees	$1170 °$
19674	Find the Reference Angle	-80 degrees	$- 80 °$
19675	Find the Reference Angle	(25pi)/3	$\frac{25 π}{3}$
19676	Find the Reference Angle	76	$76$
19677	Find the Reference Angle	-760	$- 760$
19678	Find the Reference Angle	63 degrees	$63 °$
19679	Find the Reference Angle	(17pi)/12	$\frac{17 π}{12}$
19680	Find the Reference Angle	-70 degrees	$- 70 °$
19681	Find the Reference Angle	-70	$- 70$
19682	Find the Reference Angle	70 degrees	$70 °$
19683	Find the Reference Angle	9pi	$9 π$
19684	Find the Reference Angle	(9pi)/2	$\frac{9 π}{2}$
19685	Find the Reference Angle	-72	$- 72$
19686	Find the Reference Angle	-72 degrees	$- 72 °$
19687	Find the Reference Angle	75 degrees	$75 °$
19688	Find the Reference Angle	-765	$- 765$
19689	Find the Reference Angle	780	$780$
19690	Find the Supplement	(23pi)/6	$\frac{23 π}{6}$
19691	Find the Supplement	(33pi)/10	$\frac{33 π}{10}$
19692	Find the Supplement	-(2pi)/3	$- \frac{2 π}{3}$
19693	Find the Supplement	(17pi)/6	$\frac{17 π}{6}$
19694	Find the Supplement	(25pi)/6	$\frac{25 π}{6}$
19695	Find the Supplement	-1/2	$- \frac{1}{2}$
19696	Find the Reference Angle	tan(420)	$\tan (420)$
19697	Find the Reference Angle	tan(495)	$\tan (495)$
19698	Find the Supplement	(11pi)/6	$\frac{11 π}{6}$
19699	Find the Reference Angle	tan(585)	$\tan (585)$
19700	Find the Supplement	46 degrees	$46 °$