Mathway | 热门问题

热门问题

等级	主题	问题	格式化的问题
19101	求出精确值	(4sin(45)cos(45))/(tan(30)cot(30))	$\frac{4 \sin (45) \cos (45)}{\tan (30) \cot (30)}$
19102	求出精确值	(4cos(1))/(cos(1)^2-1)	$\frac{4 \cos (1)}{\cos^{2} (1) - 1}$
19103	求出精确值	4/(sin(10))	$\frac{4}{\sin (10)}$
19104	求出精确值	32/(tan(60))	$\frac{32}{\tan (60)}$
19105	求出精确值	(3sin(10))/(sin(50))	$\frac{3 \sin (10)}{\sin (50)}$
19106	求出精确值	(3sin(50))/(sin(20))	$\frac{3 \sin (50)}{\sin (20)}$
19107	求出精确值	500/(sin(8))	$\frac{500}{\sin (8)}$
19108	求出精确值	57/(tan(36))	$\frac{57}{\tan (36)}$
19109	求出精确值	500/(sin(10))	$\frac{500}{\sin (10)}$
19110	求出精确值	500/(sin(13))	$\frac{500}{\sin (13)}$
19111	求出精确值	(5sin(140))/7	$\frac{5 \sin (140)}{7}$
19112	求出精确值	(5sin(30))/(sin(60))	$\frac{5 \sin (30)}{\sin (60)}$
19113	求出精确值	60/(cos(29))	$\frac{60}{\cos (29)}$
19114	求出精确值	3/(tan(67.5))	$\frac{3}{\tan (67.5)}$
19115	求出精确值	33/(cos(25))	$\frac{33}{\cos (25)}$
19116	求出精确值	35/(cos(51))	$\frac{35}{\cos (51)}$
19117	求出精确值	(37.4sin(17.5))/(sin(1.8))	$\frac{37.4 \sin (17.5)}{\sin (1.8)}$
19118	求出精确值	4/(tan(36))	$\frac{4}{\tan (36)}$
19119	求出精确值	(28sin(121))/42	$\frac{28 \sin (121)}{42}$
19120	求出精确值	(29sin(35.4))/23	$\frac{29 \sin (35.4)}{23}$
19121	求出精确值	(2tan(pi/3))/(1-tan(pi/3)^2)	$\frac{2 \tan (\frac{π}{3})}{1 - \tan^{2} (\frac{π}{3})}$
19122	求出精确值	(2tan(pi/8))/(1-tan(pi/8)^2)	$\frac{2 \tan (\frac{π}{8})}{1 - \tan^{2} (\frac{π}{8})}$
19123	求出精确值	(2tan((5pi)/12))/(1-tan((5pi)/12)^2)	$\frac{2 \tan (\frac{5 π}{12})}{1 - \tan^{2} (\frac{5 π}{12})}$
19124	求出精确值	(2tan((5pi)/6))/(1-tan((5pi)/6)^2)	$\frac{2 \tan (\frac{5 π}{6})}{1 - \tan^{2} (\frac{5 π}{6})}$
19125	求出精确值	(2tan((5pi)/8))/(1-tan((5pi)/8)^2)	$\frac{2 \tan (\frac{5 π}{8})}{1 - \tan^{2} (\frac{5 π}{8})}$
19126	求出精确值	27/(cos(38))	$\frac{27}{\cos (38)}$
19127	求出精确值	25/(cos(70))	$\frac{25}{\cos (70)}$
19128	求出精确值	28/(sin(41))	$\frac{28}{\sin (41)}$
19129	求出精确值	(2cos(30))/(tan(30))	$\frac{2 \cos (30)}{\tan (30)}$
19130	求出精确值	(2tan(30))/(1-tan(30)^2)	$\frac{2 \tan (30)}{1 - \tan^{2} (30)}$
19131	求出精确值	3.5/(sin(4.6))	$\frac{3.5}{\sin (4.6)}$
19132	求出精确值	30/(tan(25))	$\frac{30}{\tan (25)}$
19133	求出精确值	130/(tan(75))	$\frac{130}{\tan (75)}$
19134	求出精确值	12.2/(tan(41))	$\frac{12.2}{\tan (41)}$
19135	求出精确值	10/(sin(65))	$\frac{10}{\sin (65)}$
19136	求出精确值	10/(tan(50))	$\frac{10}{\tan (50)}$
19137	求出精确值	12/(tan(30))	$\frac{12}{\tan (30)}$
19138	求出精确值	13/(sin(62))	$\frac{13}{\sin (62)}$
19139	求出精确值	(13tan(9)tan(3.5))/(tan(9)-tan(3.5))	$\frac{13 \tan (9) \tan (3.5)}{\tan (9) - \tan (3.5)}$
19140	求出精确值	14.5/(cos(67))	$\frac{14.5}{\cos (67)}$
19141	求出精确值	140/(tan(23))	$\frac{140}{\tan (23)}$
19142	求出精确值	150/(tan(32))	$\frac{150}{\tan (32)}$
19143	求出精确值	16/(tan(55))	$\frac{16}{\tan (55)}$
19144	求出精确值	13/(tan(49))	$\frac{13}{\tan (49)}$
19145	求出精确值	14/(sin(38))	$\frac{14}{\sin (38)}$
19146	求出精确值	16/(tan(35))	$\frac{16}{\tan (35)}$
19147	求出精确值	18/(cos(62))	$\frac{18}{\cos (62)}$
19148	求出精确值	(19sin(85))/(sin(48))	$\frac{19 \sin (85)}{\sin (48)}$
19149	求出精确值	15/(sin(21))	$\frac{15}{\sin (21)}$
19150	求出精确值	18/(sin(52))	$\frac{18}{\sin (52)}$
19151	求出精确值	(2sin(22.5)cos(22.5))/2	$\frac{2 \cdot \sin (22.5) \cdot \cos (22.5)}{2}$
19152	求出精确值	(1-cos((5pi)/6))/(sin((5pi)/6))	$\frac{1 - \cos (\frac{5 π}{6})}{\sin (\frac{5 π}{6})}$
19153	求出精确值	(1-cos(2a))/(sin(2a))	$\frac{1 - \cos (2 a)}{\sin (2 a)}$
19154	求出精确值	(1-sin((2pi)/3))/(cos((2pi)/3))	$\frac{1 - \sin (\frac{2 π}{3})}{\cos (\frac{2 π}{3})}$
19155	求出精确值	(1-tan(pi/4))/(sin(pi/4)-cos(pi/4))	$\frac{1 - \tan (\frac{π}{4})}{\sin (\frac{π}{4}) - \cos (\frac{π}{4})}$
19156	求出精确值	2/(sin(5))	$\frac{2}{\sin (5)}$
19157	求出精确值	10/(tan(25))	$\frac{10}{\tan (25)}$
19158	求出精确值	(20sin(100))/(sin(47))	$\frac{20 \sin (100)}{\sin (47)}$
19159	求出精确值	200/(tan(60))	$\frac{200}{\tan (60)}$
19160	求出精确值	20/(cos(15))	$\frac{20}{\cos (15)}$
19161	求出精确值	(20sin(70))/(sin(40))	$\frac{20 \sin (70)}{\sin (40)}$
19162	求出精确值	21/(sin(36))	$\frac{21}{\sin (36)}$
19163	求出精确值	(20sin(127))/65	$\frac{20 \sin (127)}{65}$
19164	求出精确值	(20sin(47))/(sin(60))	$\frac{20 \sin (47)}{\sin (60)}$
19165	求出精确值	210/(tan(21))	$\frac{210}{\tan (21)}$
19166	求出精确值	(210sin(129))/(sin(20))	$\frac{210 \sin (129)}{\sin (20)}$
19167	求出精确值	22/(cos(30))	$\frac{22}{\cos (30)}$
19168	求出精确值	24/(sin(34))	$\frac{24}{\sin (34)}$
19169	求出精确值	25/(sin(90))	$\frac{25}{\sin (90)}$
19170	求出精确值	25/(tan(23))	$\frac{25}{\tan (23)}$
19171	检验恒等式	y=tan(x)	$y = \tan (x)$
19172	检验恒等式	tan(x+pi)+2sin(x+pi)=0	$\tan (x + π) + 2 \sin (x + π) = 0$
19173	检验恒等式	y=sin(3-2pi)	$y = \sin (3 - 2 π)$
19174	检验恒等式	y=sin(3x-2pi)	$y = \sin (3 x - 2 π)$
19175	检验恒等式	y=tan(x+pi/4)	$y = \tan (x + \frac{π}{4})$
19176	x के लिये हल कीजिये	3=2sin(x) 的平方根	$\sqrt{3} = 2 \sin (x)$
19177	x के लिये हल कीजिये	-sin(x)=sin(x)+ 2 的平方根	$- \sin (x) = \sin (x) + \sqrt{2}$
19178	展开三角式	2sin(2z)	$2 \sin (2 z)$
19179	求出精确值	(30)(cos(90))	$(30) (\cos (90))$
19180	展开三角式	tan(2z)	$\tan (2 z)$
19181	展开三角式	2tan(2y)	$2 \tan (2 y)$
19182	展开三角式	3sin(2y)	$3 \sin (2 y)$
19183	求振幅、周期和相移	f(x)=tan(3x-pi/2)	$f (x) = \tan (3 x - \frac{π}{2})$
19184	求出精确值	(tan(1))/(cot(1))	$\frac{\tan (1)}{\cot (1)}$
19185	x के लिये हल कीजिये	3sin(x)^2+2sin(x)-1=0	$3 \sin^{2} (x) + 2 \sin (x) - 1 = 0$
19186	求出精确值	(csc(30))(tan(60))	$(\csc (30)) (\tan (60))$
19187	求出精确值	sin((7pi)/6)+cos((7pi)/6)	$\sin (\frac{7 π}{6}) + \cos (\frac{7 π}{6})$
19188	求出精确值	(tan(45))(cot(45))	$(\tan (45)) (\cot (45))$
19189	求出精确值	(1135sin(72.92))/1567	$\frac{1135 \sin (72.92)}{1567}$
19190	求出精确值	(19sin(123))/43	$\frac{19 \sin (123)}{43}$
19191	求出精确值	(4cos(30)-6sin(120))^-2	${(4 \cos (30) - 6 \sin (120))}^{- 2}$
19192	求出精确值	1/(sin(19))	$\frac{1}{\sin (19)}$
19193	求出精确值	1/(tan(180))	$\frac{1}{\tan (180)}$
19194	求出精确值	1/(sin(40))	$\frac{1}{\sin (40)}$
19195	求出精确值	1/(tan(5))	$\frac{1}{\tan (5)}$
19196	求出精确值	1/(tan(9.3))	$\frac{1}{\tan (9.3)}$
19197	求出精确值	100/(cos(43))	$\frac{100}{\cos (43)}$
19198	求出精确值	(10sin(45))/(sin(30))	$\frac{10 \sin (45)}{\sin (30)}$
19199	求出精确值	(55/6*tan(16))/(1-tan(16/57))	$\frac{\frac{55}{6} \cdot \tan (16)}{1 - \tan (\frac{16}{57})}$
19200	求出精确值	1/(sin(0))	$\frac{1}{\sin (0)}$