Mathway | 热门问题

热门问题

等级	主题	问题	格式化的问题
18601	求出精确值	arccot(-0.048)	$arccot (- 0.048)$
18602	求出精确值	arccot(-0.072)	$arccot (- 0.072)$
18603	求出精确值	arccot(-0.432)	$arccot (- 0.432)$
18604	求出精确值	arccot(cot(pi/8))	$arccot (\cot (\frac{π}{8}))$
18605	求出精确值	sec(1)^2	$\sec^{2} (1)$
18606	求出精确值	(sin(pi/3))/(cos(pi/3))	$\frac{\sin (\frac{π}{3})}{\cos (\frac{π}{3})}$
18607	求出精确值	(sin(11pi))/6	$\frac{\sin (11 π)}{6}$
18608	求出精确值	(sin(-17pi))/6	$\frac{\sin (- 17 π)}{6}$
18609	求出精确值	(sin(-40))/(cos(50))	$\frac{\sin (- 40)}{\cos (50)}$
18610	求出精确值	(sin(315))/(1+cos(315))	$\frac{\sin (315)}{1 + \cos (315)}$
18611	求出精确值	(sin(15.5))/(sin(10.5))	$\frac{\sin (15.5)}{\sin (10.5)}$
18612	求出精确值	(sin(1))/1	$\frac{\sin (1)}{1}$
18613	求出精确值	(sin(pi/6))/2	$\frac{\sin (\frac{π}{6})}{2}$
18614	求出精确值	(sin(16))/(sin(10))	$\frac{\sin (16)}{\sin (10)}$
18615	求出精确值	(sin(30))/(cos(30))	$\frac{\sin (30)}{\cos (30)}$
18616	求出精确值	(sin(30)cos(60))/(sin(270))	$\frac{\sin (30) \cos (60)}{\sin (270)}$
18617	求出精确值	sec(pi)^2	$\sec^{2} (π)$
18618	求出精确值	(sin(0.1))/0.1	$\frac{\sin (0.1)}{0.1}$
18619	求出精确值	sec(60)^2	$\sec^{2} (60)$
18620	求出精确值	arcsec(sec(pi/4))	$arcsec (\sec (\frac{π}{4}))$
18621	求出精确值	sec(35)^2-tan(35)^2	$\sec^{2} (35) - \tan^{2} (35)$
18622	求出精确值	sec(15)^2-tan(15)^2	$\sec^{2} (15) - \tan^{2} (15)$
18623	求出精确值	arcsec(7)	$arcsec (7)$
18624	求出精确值	arcsec(8)	$arcsec (8)$
18625	求出精确值	arcsec(sec(pi/9))	$arcsec (\sec (\frac{π}{9}))$
18626	求出精确值	arcsec(2.1)	$arcsec (2.1)$
18627	求出精确值	arcsec(0.5)	$arcsec (0.5)$
18628	求出精确值	arcsec(17)	$arcsec (17)$
18629	求出精确值	arcsec(1.3587)	$arcsec (1.3587)$
18630	求出精确值	3cos(-pi/2)	$3 \cos (- \frac{π}{2})$
18631	求出精确值	3cos(120)	$3 \cos (120)$
18632	求出精确值	3cos(50)	$3 \cos (50)$
18633	求出精确值	3cos(60)	$3 \cos (60)$
18634	求出精确值	-3sin(-3)	$- 3 \sin (- 3)$
18635	求出精确值	3sin(45)-4tan(pi/6)	$3 \sin (45) - 4 \tan (\frac{π}{6})$
18636	求出精确值	3cos((3pi)/2)	$3 \cos (\frac{3 π}{2})$
18637	求出精确值	38cos(45)	$38 \cos (45)$
18638	求出精确值	(39.6(sin(29.6)))/28.4	$\frac{39.6 (\sin (29.6))}{28.4}$
18639	求出精确值	3cos(150)	$3 \cos (150)$
18640	求出精确值	3cos(165)	$3 \cos (165)$
18641	求出精确值	3cos(240)	$3 \cos (240)$
18642	求出精确值	34sin(210)	$34 \sin (210)$
18643	求出精确值	2sin(x+1)	$2 \sin (x + 1)$
18644	求出精确值	30sin(30)	$30 \sin (30)$
18645	求出精确值	35cos(15)	$35 \cos (15)$
18646	求出精确值	31cos(40)	$31 \cos (40)$
18647	求出精确值	35sin(31.6)	$35 \sin (31.6)$
18648	求出精确值	35sin(51)	$35 \sin (51)$
18649	求出精确值	2sin(49)cos(49)	$2 \sin (49) \cos (49)$
18650	求出精确值	2sin(37.5)sin(97.5)	$2 \sin (37.5) \sin (97.5)$
18651	求出精确值	2sin(52.5)sin(82.5)	$2 \sin (52.5) \sin (82.5)$
18652	求出精确值	2sin(60)	$2 \sin (60)$
18653	求出精确值	-2sin(90)	$- 2 \sin (90)$
18654	求出精确值	300tan(22)	$300 \tan (22)$
18655	求出精确值	30sin(60)	$30 \sin (60)$
18656	求出精确值	31sin(27)	$31 \sin (27)$
18657	求出精确值	32cot(19)	$32 \cot (19)$
18658	求出精确值	2sin(3)	$2 \sin (3)$
18659	求出精确值	2sin((2pi)/3)cos((2pi)/3)	$2 \sin (\frac{2 π}{3}) \cos (\frac{2 π}{3})$
18660	求出精确值	2sin(180)	$2 \sin (180)$
18661	求出精确值	2sin(-2)	$2 \sin (- 2)$
18662	求出精确值	2sin(pi/2)cos(pi/2)	$2 \sin (\frac{π}{2}) \cos (\frac{π}{2})$
18663	求出精确值	2sin(100)cos(100)	$2 \sin (100) \cos (100)$
18664	求出精确值	2sin(12)cos(12)	$2 \sin (12) \cos (12)$
18665	求出精确值	2sin(112.5)cos(112.5)	$2 \sin (112.5) \cos (112.5)$
18666	求出精确值	-2cos(0)	$- 2 \cos (0)$
18667	求出精确值	2cos(210)	$2 \cos (210)$
18668	求出精确值	2500sin(2.5)	$2500 \sin (2.5)$
18669	求出精确值	2cos((5pi)/12)	$2 \cos (\frac{5 π}{12})$
18670	求出精确值	2arctan(-5/12)	$2 \arctan (- \frac{5}{12})$
18671	求出精确值	275cos(338)	$275 \cos (338)$
18672	求出精确值	-2cos(pi/4)	$- 2 \cos (\frac{π}{4})$
18673	求出精确值	2cos(45)	$2 \cos (45)$
18674	求出精确值	2cos(pi)	$2 \cos (π)$
18675	求出精确值	2sec(pi/3)	$2 \sec (\frac{π}{3})$
18676	求出精确值	2sec(60)csc(300)	$2 \sec (60) \csc (300)$
18677	求出精确值	2sin(0.6)cos(0.6)	$2 \sin (0.6) \cos (0.6)$
18678	求出精确值	2sin(-pi/4)cos(pi/3)	$2 \sin (- \frac{π}{4}) \cos (\frac{π}{3})$
18679	求出精确值	2sin(pi/3)cos(pi/3)	$2 \sin (\frac{π}{3}) \cos (\frac{π}{3})$
18680	求出精确值	-2sin((5pi)/4)	$- 2 \sin (\frac{5 π}{4})$
18681	求出精确值	2sin((5pi)/6)	$2 \sin (\frac{5 π}{6})$
18682	求出精确值	2sin((7pi)/12)cos((7pi)/12)	$2 \sin (\frac{7 π}{12}) \cos (\frac{7 π}{12})$
18683	求出精确值	2sin(15/17)cos(8/17)	$2 \sin (\frac{15}{17}) \cos (\frac{8}{17})$
18684	求出精确值	2pi(3.5)^2(1+sin(75/2))	$2 π {(3.5)}^{2} (1 + \sin (\frac{75}{2}))$
18685	求出精确值	2cos(90)	$2 \cos (90)$
18686	求出精确值	2sin((2pi)/3)	$2 \sin (\frac{2 π}{3})$
18687	求出精确值	2sin((2pi)/9)cos((2pi)/9)	$2 \sin (\frac{2 π}{9}) \cos (\frac{2 π}{9})$
18688	求出精确值	2sin(3/5)cos(4/5)	$2 \sin (\frac{3}{5}) \cos (\frac{4}{5})$
18689	求出精确值	2sin((3pi)/8)cos((3pi)/8)	$2 \sin (\frac{3 π}{8}) \cos (\frac{3 π}{8})$
18690	求出精确值	2500cos(30)	$2500 \cos (30)$
18691	求出精确值	20sin(72)	$20 \sin (72)$
18692	求出精确值	24cos(30)	$24 \cos (30)$
18693	求出精确值	24(1-(arccos(tan(0)tan(21.3)))/pi)	$24 (1 - \frac{\arccos (\tan (0) \tan (21.3))}{π})$
18694	求出精确值	250tan(39)	$250 \tan (39)$
18695	求出精确值	25cos(15)	$25 \cos (15)$
18696	求出精确值	25sin(60)	$25 \sin (60)$
18697	求出精确值	25sin(68)	$25 \sin (68)$
18698	求出精确值	2sin(135)^2	$2 \sin^{2} (135)$
18699	求出精确值	2arcsin(4/5)	$2 \arcsin (\frac{4}{5})$
18700	求出精确值	200sin(160)	$200 \sin (160)$