Mathway | 热门问题

热门问题

等级	主题	问题	格式化的问题
12801	化简	sin(315)-sin(60)	$\sin (315) - \sin (60)$
12802	化简	sin(40)(sin(180))-cos(40)cos(180)	$\sin (40) (\sin (180)) - \cos (40) \cos (180)$
12803	化简	sin(40)cos(50)+cos(40)sin(50)	$\sin (40) \cos (50) + \cos (40) \sin (50)$
12804	化简	sin(45)+cos(30)	$\sin (45) + \cos (30)$
12805	化简	sin(45)+cos(45)	$\sin (45) + \cos (45)$
12806	化简	sin(40)cos(15)-cos(40)sin(15)	$\sin (40) \cos (15) - \cos (40) \sin (15)$
12807	化简	sin(4x)cos(2x)	$\sin (4 x) \cos (2 x)$
12808	化简	sin(45+180)	$\sin (45 + 180)$
12809	化简	sin(49)cos(11)-cos(49)sin(11)	$\sin (49) \cos (11) - \cos (49) \sin (11)$
12810	化简	sin(45)cos(60)	$\sin (45) \cos (60)$
12811	化简	sin(5)cos(25)+cos(5)sin(25)	$\sin (5) \cos (25) + \cos (5) \sin (25)$
12812	化简	sin(5x)-sin(x)	$\sin (5 x) - \sin (x)$
12813	化简	sin(5x)-sin(3x)	$\sin (5 x) - \sin (3 x)$
12814	化简	sin(54)	$\sin (54)$
12815	化简	sin(5x)cos(6x)	$\sin (5 x) \cos (6 x)$
12816	化简	sin(5x)sin(2x)	$\sin (5 x) \sin (2 x)$
12817	化简	sin(5x)sin(3x)	$\sin (5 x) \sin (3 x)$
12818	化简	sin(57)cos(63)+cos(57)sin(63)	$\sin (57) \cos (63) + \cos (57) \sin (63)$
12819	化简	-i-(8-9i)	$- i - (8 - 9 i)$
12820	化简	i*(5i)	$i \cdot (5 i)$
12821	化简	i+i^2+i^3+i^4+i^5	$i + i^{2} + i^{3} + i^{4} + i^{5}$
12822	化简	sec(theta)^2-tan(theta)^2+1	$\sec^{2} (θ) - \tan^{2} (θ) + 1$
12823	化简	pi+arctan(0/-4)	$π + \arctan (\frac{0}{- 4})$
12824	化简	(x-7y)^2	${(x - 7 y)}^{2}$
12825	化简	f(x)x^5-3x^2+7x-23	$f (x) x^{5} - 3 x^{2} + 7 x - 23$
12826	化简	-f(x)+2	$- f (x) + 2$
12827	化简	foci (0,7) vertex (0,-3)	foci $(0, 7)$ vertex $(0, - 3)$
12828	化简	g(f^-1(12/13))	$g (f^{- 1} (\frac{12}{13}))$
12829	化简	f(g(4))	$f (g (4))$
12830	化简	f(x)*(4x^3)+7x^2-55x+50	$f (x) \cdot (4 x^{3}) + 7 x^{2} - 55 x + 50$
12831	求X轴截距和Y轴截距	f(x)=4x^3-12x^2-x+15	$f (x) = 4 x^{3} - 12 x^{2} - x + 15$
12832	化简	cot(90-x)=1	$\cot (90 - x) = 1$
12833	化简	cot(A)sec(A)sin(A)	$\cot (A) \sec (A) \sin (A)$
12834	化简	cot(arctan(1/x))	$\cot (\arctan (\frac{1}{x}))$
12835	化简	cot(690)	$\cot (690)$
12836	化简	cot(x)*cot(x)	$\cot (x) \cdot \cot (x)$
12837	化简	(1+1/x)/(1/x)	$\frac{1 + \frac{1}{x}}{\frac{1}{x}}$
12838	化简	cot(-x)cos(-x)+sin(-x)	$\cot (- x) \cos (- x) + \sin (- x)$
12839	化简	cot(t)sin(t)	$\cot (t) \sin (t)$
12840	化简	cot(x)(tan(x)-sec(x))	$\cot (x) (\tan (x) - \sec (x))$
12841	化简	cot(x-y)	$\cot (x - y)$
12842	化简	csc((4pi)/3)	$\csc (\frac{4 π}{3})$
12843	化简	csc(x)cot(x)cos(x)	$\csc (x) \cot (x) \cos (x)$
12844	化简	csc(arctan(1/x))	$\csc (\arctan (\frac{1}{x}))$
12845	化简	(8+ -12)-(4+2 的平方根 3i) 的平方根	$(8 + \sqrt{- 12}) - (4 + 2 \sqrt{3 i})$
12846	化简	csc((-7pi)/2)-cot((7pi)/2)	$\csc (\frac{- 7 π}{2}) - \cot (\frac{7 π}{2})$
12847	化简	csc((7pi)/4)	$\csc (\frac{7 π}{4})$
12848	化简	csc(pi/10)	$\csc (\frac{π}{10})$
12849	化简	csc(pi/2-x)cos(-x)	$\csc (\frac{π}{2} - x) \cos (- x)$
12850	化简	csc((7pi)/6)	$\csc (\frac{7 π}{6})$
12851	化简	csc(pi/2-u)	$\csc (\frac{π}{2} - u)$
12852	化简	csc(x)-tan(x)	$\csc (x) - \tan (x)$
12853	化简	f(f^-1(x))	$f (f^{- 1} (x))$
12854	化简	-fa	$- f a$
12855	化简	csc(y)cos(pi/2-y)	$\csc (y) \cos (\frac{π}{2} - y)$
12856	化简	csc(y)-cot(y)	$\csc (y) - \cot (y)$
12857	化简	csc(59)	$\csc (59)$
12858	化简	csc(x)-cot(x)*cos(x)	$\csc (x) - \cot (x) \cdot \cos (x)$
12859	化简	csc(x)sin(pi/2-x)	$\csc (x) \sin (\frac{π}{2} - x)$
12860	化简	csc(90-x)	$\csc (90 - x)$
12861	化简	csc(30)-cos(30)	$\csc (30) - \cos (30)$
12862	化简	csc(2pi)	$\csc (2 π)$
12863	化简	csc(-630)	$\csc (- 630)$
12864	化简	-csc(x)+csc(x)sec(x)^2	$- \csc (x) + \csc (x) \sec^{2} (x)$
12865	化简	csc(A)-sin(A)	$\csc (A) - \sin (A)$
12866	化简	csc(t)cot(t)	$\csc (t) \cot (t)$
12867	化简	csc(t)(sin(t)-tan(t))	$\csc (t) (\sin (t) - \tan (t))$
12868	化简	(3x^2y)/(3y^2x)	$\frac{3 x^{2} y}{3 y^{2} x}$
12869	化简	cos(-x)csc(x)	$\cos (- x) \csc (x)$
12870	化简	cos(x)cot(x)sin(x)	$\cos (x) \cot (x) \sin (x)$
12871	化简	cos(x)sin(x)(tan(x)+csc(x))	$\cos (x) \sin (x) (\tan (x) + \csc (x))$
12872	化简	cos(x-(5pi)/6)	$\cos (x - \frac{5 π}{6})$
12873	化简	cos(x+y)cos(x-y)	$\cos (x + y) \cos (x - y)$
12874	化简	cot(26)	$\cot (26)$
12875	化简	cot(20)-(cos(20))/(sin(20))	$\cot (20) - \frac{\cos (20)}{\sin (20)}$
12876	化简	cot(1)	$\cot (1)$
12877	化简	cot(pi/2-x)csc(x)	$\cot (\frac{π}{2} - x) \csc (x)$
12878	化简	cot(pi/7)	$\cot (\frac{π}{7})$
12879	化简	cot((-3pi)/4)	$\cot (\frac{- 3 π}{4})$
12880	化简	cot((11pi)/6)	$\cot (\frac{11 π}{6})$
12881	化简	cot((13pi)/6)	$\cot (\frac{13 π}{6})$
12882	化简	cos(B)+sin(B)tan(B)	$\cos (B) + \sin (B) \tan (B)$
12883	化简	cos(arcsin(5x))	$\cos (\arcsin (5 x))$
12884	化简	((2a^-1b)/(a^4b^-2))^-2	${(\frac{2 a^{- 1} b}{a^{4} b^{- 2}})}^{- 2}$
12885	化简	cos(arcsin(x/6))	$\cos (\arcsin (\frac{x}{6}))$
12886	化简	((2a^-1b)/(a^3b^-4))^-2	${(\frac{2 a^{- 1} b}{a^{3} b^{- 4}})}^{- 2}$
12887	化简	(3-(a-3))/(3+(a-3))	$\frac{3 - (a - 3)}{3 + (a - 3)}$
12888	化简	cos(a-B)+cos(a+B)	$\cos (a - B) + \cos (a + B)$
12889	化简	cos(a)sec(a)	$\cos (a) \sec (a)$
12890	化简	(3x^2-x+9)(x^2+3x+3)	$(3 x^{2} - x + 9) (x^{2} + 3 x + 3)$
12891	化简	cos(arcsin(-1/2))+arccos(5/13)	$\cos (\arcsin (- \frac{1}{2})) + \arccos (\frac{5}{13})$
12892	化简	(4x2x-(x^2+9)4)/((x^2+9)^2)	$\frac{4 x \cdot 2 x - (x^{2} + 9) \cdot 4}{{(x^{2} + 9)}^{2}}$
12893	化简	cos(x)+cos(x)tan(x)^2	$\cos (x) + \cos (x) \tan^{2} (x)$
12894	化简	cos(-x)+(sin(-x))/(cot(-x))	$\cos (- x) + \frac{\sin (- x)}{\cot (- x)}$
12895	化简	cos(x)+cos(9x)	$\cos (x) + \cos (9 x)$
12896	化简	cos(x)(1-cos(x))	$\cos (x) (1 - \cos (x))$
12897	化简	cos(x)(1-sin(x))	$\cos (x) (1 - \sin (x))$
12898	化简	336 的平方根	$\sqrt{336}$
12899	化简	cos(t)sin(t)	$\cos (t) \sin (t)$
12900	化简	cos(t)-cos(-t)+sin(t)-sin(-t)	$\cos (t) - \cos (- t) + \sin (t) - \sin (- t)$