Mathway | 热门问题

热门问题

等级	主题	问题	格式化的问题
11801	化简	cot(100)	$\cot (100)$
11802	化简	cot(-120)	$\cot (- 120)$
11803	化简	cot(13)csc(77)sin(13)	$\cot (13) \cdot \csc (77) \cdot \sin (13)$
11804	化简	cot(16)csc(74)sin(16)	$\cot (16) \cdot \csc (74) \cdot \sin (16)$
11805	化简	cot(165)	$\cot (165)$
11806	化简	cos(x+y)-cos(x-y)	$\cos (x + y) - \cos (x - y)$
11807	化简	cot(x)- 3 的平方根	$\cot (x) - \sqrt{3}$
11808	化简	cot(x)+(1-2cos(x)^2)/(sin(x)cos(x))	$\cot (x) + \frac{1 - 2 \cos^{2} (x)}{\sin (x) \cos (x)}$
11809	化简	cot(-x)+sec(-x)+cot(x)	$\cot (- x) + \sec (- x) + \cot (x)$
11810	化简	cot(x)-2cos(x)cot(x)	$\cot (x) - 2 \cos (x) \cot (x)$
11811	化简	cot(1/4)	$\cot (\frac{1}{4})$
11812	化简	cos(x-45)	$\cos (x - 45)$
11813	化简	cos(x-(5pi)/2)	$\cos (x - \frac{5 π}{2})$
11814	化简	cos(x-5pi)	$\cos (x - 5 π)$
11815	化简	cos(y)sin(y)(sec(y)+csc(y))	$\cos (y) \sin (y) (\sec (y) + \csc (y))$
11816	化简	cot(x)(cot(x)+tan(x))	$\cot (x) (\cot (x) + \tan (x))$
11817	化简	cos(h(x))	$\cosh (x)$
11818	化简	cot((10pi)/3)+(cot((16pi)/3))/(cos((17pi)/6))	$\cot (\frac{10 π}{3}) + \frac{\cot (\frac{16 π}{3})}{\cos (\frac{17 π}{6})}$
11819	化简	cot(-(5pi)/6)	$\cot (- \frac{5 π}{6})$
11820	化简	cot((3pi)/2)+cos((3pi)/2)	$\cot (\frac{3 π}{2}) + \cos (\frac{3 π}{2})$
11821	化简	cot(3/5)	$\cot (\frac{3}{5})$
11822	化简	cot(-(17pi)/6)	$\cot (- \frac{17 π}{6})$
11823	化简	cot((7pi)/4)-cot((5pi)/4)	$\cot (\frac{7 π}{4}) - \cot (\frac{5 π}{4})$
11824	化简	cot(-pi/3)	$\cot (- \frac{π}{3})$
11825	化简	cot(arcsin(a/b))	$\cot (\arcsin (\frac{a}{b}))$
11826	化简	cot(0)*tan(0)	$\cot (0) \cdot \tan (0)$
11827	化简	cos(arcsin(6x))	$\cos (\arcsin (6 x))$
11828	化简	cos(arcsin(7x))	$\cos (\arcsin (7 x))$
11829	化简	cos(arcsin(u)+arccos(v))	$\cos (\arcsin (u) + \arccos (v))$
11830	化简	cos(arcsin(-1)+pi/4)	$\cos (\arcsin (- 1) + \frac{π}{4})$
11831	化简	cos(arcsin(1/4))	$\cos (\arcsin (\frac{1}{4}))$
11832	化简	cos(arcsin(12x))	$\cos (\arcsin (12 x))$
11833	化简	cos(arcsin(6/x))	$\cos (\arcsin (\frac{6}{x}))$
11834	化简	cos(arcsin(7/25))	$\cos (\arcsin (\frac{7}{25}))$
11835	化简	cos(arctan(5/x))	$\cos (\arctan (\frac{5}{x}))$
11836	化简	cos(120+x)	$\cos (120 + x)$
11837	化简	cos(118)	$\cos (118)$
11838	化简	cos(12)cos(18)-sin(12)sin(18)	$\cos (12) \cos (18) - \sin (12) \sin (18)$
11839	化简	cos(120-45)	$\cos (120 - 45)$
11840	化简	cos(126)	$\cos (126)$
11841	化简	cos(13)cos(32)-sin(13)sin(32)	$\cos (13) \cos (32) - \sin (13) \sin (32)$
11842	化简	cos(130)cos(10)+sin(10)sin(130)	$\cos (130) \cos (10) + \sin (10) \sin (130)$
11843	化简	cos(105)-cos(15)	$\cos (105) - \cos (15)$
11844	化简	cos(109)	$\cos (109)$
11845	化简	cos(1050)	$\cos (1050)$
11846	化简	cos(x/8)	$\cos (\frac{x}{8})$
11847	化简	cos(-105)	$\cos (- 105)$
11848	化简	cos(2x)-cos(x)	$\cos (2 x) - \cos (x)$
11849	化简	cos(195)+cos(105)	$\cos (195) + \cos (105)$
11850	化简	cos(20)	$\cos (20)$
11851	化简	cos(200)	$\cos (200)$
11852	化简	cos(2arccos(x))	$\cos (2 \arccos (x))$
11853	化简	cos(21)	$\cos (21)$
11854	化简	cos(-220)	$\cos (- 220)$
11855	化简	cos(20)cos(40)cos(80)	$\cos (20) \cdot \cos (40) \cdot \cos (80)$
11856	化简	cos(148)cos(32)-sin(148)sin(32)	$\cos (148) \cos (32) - \sin (148) \sin (32)$
11857	化简	cos(15)*6	$\cos (15) \cdot 6$
11858	化简	cos(15)+cos(75)	$\cos (15) + \cos (75)$
11859	化简	cos(-150)	$\cos (- 150)$
11860	व्रत-खंड I में अन्य त्रिकोणमितीय मानों का पता लगाए	tan(theta)=12/5	$\tan (θ) = \frac{12}{5}$
11861	化简	cos(135)cos(30)-sin(135)sin(30)	$\cos (135) \cos (30) - \sin (135) \sin (30)$
11862	化简	cos(14)cos(46)-sin(14)sin(46)	$\cos (14) \cos (46) - \sin (14) \sin (46)$
11863	化简	cos(180)-sin(180)	$\cos (180) - \sin (180)$
11864	化简	cos(180-x)	$\cos (180 - x)$
11865	化简	cos(150-x)	$\cos (150 - x)$
11866	化简	cos(160)	$\cos (160)$
11867	化简	cos(15)cos(30)-sin(15)sin(30)	$\cos (15) \cos (30) - \sin (15) \sin (30)$
11868	化简	cos(157.5)	$\cos (157.5)$
11869	化简	cos((4pi)/5)cos((7pi)/15)+sin((4pi)/5)sin((7pi)/15)	$\cos (\frac{4 π}{5}) \cos (\frac{7 π}{15}) + \sin (\frac{4 π}{5}) \sin (\frac{7 π}{15})$
11870	化简	cos(-(3pi)/8)	$\cos (- \frac{3 π}{8})$
11871	化简	cos((3pi)/8)+cos(pi/8)	$\cos (\frac{3 π}{8}) + \cos (\frac{π}{8})$
11872	化简	cos(3/5)	$\cos (\frac{3}{5})$
11873	化简	cos((3x)/2)sin(x/2)	$\cos (\frac{3 x}{2}) \sin (\frac{x}{2})$
11874	化简	cos((5pi)/18)cos((2pi)/9)-sin((5pi)/18)sin((2pi)/9)	$\cos (\frac{5 π}{18}) \cos (\frac{2 π}{9}) - \sin (\frac{5 π}{18}) \sin (\frac{2 π}{9})$
11875	化简	cos((5pi)/12)cos(pi/6)+sin((5pi)/12)sin(pi/6)	$\cos (\frac{5 π}{12}) \cos (\frac{π}{6}) + \sin (\frac{5 π}{12}) \sin (\frac{π}{6})$
11876	化简	cos((5n)/3)	$\cos (\frac{5 n}{3})$
11877	化简	cos((3pi)/5)cos(pi/15)-sin((3pi)/5)sin(pi/15)	$\cos (\frac{3 π}{5}) \cos (\frac{π}{15}) - \sin (\frac{3 π}{5}) \sin (\frac{π}{15})$
11878	化简	cos((3x)/2)+cos((13x)/2)	$\cos (\frac{3 x}{2}) + \cos (\frac{13 x}{2})$
11879	化简	cos((4pi)/15)cos(pi/10)+sin((4pi)/15)sin(pi/10)	$\cos (\frac{4 π}{15}) \cos (\frac{π}{10}) + \sin (\frac{4 π}{15}) \sin (\frac{π}{10})$
11880	化简	cos(5/13)	$\cos (\frac{5}{13})$
11881	化简	cos(5/13)+cos(4/5)	$\cos (\frac{5}{13}) + \cos (\frac{4}{5})$
11882	化简	cos((3pi)/7)cos((2pi)/21)+sin((3pi)/7)sin((2pi)/21)	$\cos (\frac{3 π}{7}) \cos (\frac{2 π}{21}) + \sin (\frac{3 π}{7}) \sin (\frac{2 π}{21})$
11883	化简	cos((5pi)/24)+cos(pi/24)	$\cos (\frac{5 π}{24}) + \cos (\frac{π}{24})$
11884	化简	cos((7x)/2)+cos((5x)/2)	$\cos (\frac{7 x}{2}) + \cos (\frac{5 x}{2})$
11885	化简	cos((5pi)/8)cos(pi/8)+sin((5pi)/8)sin(pi/8)	$\cos (\frac{5 π}{8}) \cos (\frac{π}{8}) + \sin (\frac{5 π}{8}) \sin (\frac{π}{8})$
11886	化简	cos(73/1)*13/x	$\cos (\frac{73}{1}) \cdot \frac{13}{x}$
11887	化简	cos((5pi)/18)sin(pi/9)-cos(pi/9)sin((5pi)/18)	$\cos (\frac{5 π}{18}) \sin (\frac{π}{9}) - \cos (\frac{π}{9}) \sin (\frac{5 π}{18})$
11888	化简	cos(-(5pi)/2)	$\cos (- \frac{5 π}{2})$
11889	化简	cos((5x)/4)	$\cos (\frac{5 x}{4})$
11890	化简	cos((2pi)/3+x)	$\cos (\frac{2 π}{3} + x)$
11891	化简	cos((2pi)/7)	$\cos (\frac{2 π}{7})$
11892	化简	cos((2pi)/7)cos((6pi)/5)-sin((2pi)/7)sin((6pi)/5)	$\cos (\frac{2 π}{7}) \cos (\frac{6 π}{5}) - \sin (\frac{2 π}{7}) \sin (\frac{6 π}{5})$
11893	化简	cos(3/5)cos(( 21)/5)-sin(4/5)sin(2/5) 的平方根	$\cos (\frac{3}{5}) \cos (\frac{\sqrt{21}}{5}) - \sin (\frac{4}{5}) \sin (\frac{2}{5})$
11894	化简	cos(30/34)	$\cos (\frac{30}{34})$
11895	化简	cos(-(37pi)/6)-csc(-(37pi)/6)	$\cos (- \frac{37 π}{6}) - \csc (- \frac{37 π}{6})$
11896	化简	cos(-3/4)	$\cos (- \frac{3}{4})$
11897	化简	cos((3pi)/16)	$\cos (\frac{3 π}{16})$
11898	化简	cos((-3pi)/4)	$\cos (\frac{- 3 π}{4})$
11899	化简	cos((20pi)/3)	$\cos (\frac{20 π}{3})$
11900	化简	cos((-20pi)/5)	$\cos (\frac{- 20 π}{5})$