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Popular Problems

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Popular Trigonometry Problems

1/2 cos(0)	\frac{1}{2}\cos(0)
sin((3pi)/4+(5pi)/6)	\sin(\frac{3π}{4}+\frac{5π}{6})
tan(-900)	\tan(-900^{\circ\:})
cos(-(19pi)/6)	\cos(-\frac{19π}{6})
cos(pi)-sin(pi)	\cos(π)-\sin(π)
cos(45)cos(30)-sin(45)sin(30)	\cos(45^{\circ\:})\cos(30^{\circ\:})-\sin(45^{\circ\:})\sin(30^{\circ\:})
arctan(-2/5)	\arctan(-\frac{2}{5})
arctan(-2/0)	\arctan(-\frac{2}{0})
1-cos^2(20)-cos^2(70)	1-\cos^{2}(20^{\circ\:})-\cos^{2}(70^{\circ\:})
tanh(ln(5))	\tanh(\ln(5))
150cos(30)	150\cos(30^{\circ\:})
sin((17pi)/2)	\sin(\frac{17π}{2})
-6sin(pi/3)	-6\sin(\frac{π}{3})
cos^2(6)	\cos^{2}(6)
arctan(5/(5sqrt(3)))	\arctan(\frac{5}{5\sqrt{3}})
cos((11pi)/8)	\cos(\frac{11π}{8})
arccos(cos((42pi)/(53)))	\arccos(\cos(\frac{42π}{53}))
100cos(60)	100\cos(60^{\circ\:})
cos(2arctan(4/3))	\cos(2\arctan(\frac{4}{3}))
cos^2(-1)	\cos^{2}(-1)
arctan(0.36)	\arctan(0.36)
sin((22pi)/3)	\sin(\frac{22π}{3})
sin^2(pi/8)	\sin^{2}(\frac{π}{8})
sec((-5pi)/6)	\sec(\frac{-5π}{6})
5sin(60)	5\sin(60^{\circ\:})
arctan(7/11)	\arctan(\frac{7}{11})
5sin(pi)	5\sin(π)
cos(750)	\cos(750^{\circ\:})
cos(arcsin(3/5)+arctan(12/5))	\cos(\arcsin(\frac{3}{5})+\arctan(\frac{12}{5}))
cos(pi/4-(5pi)/6)	\cos(\frac{π}{4}-\frac{5π}{6})
9sin(pi/4)+9cos(pi/4)	9\sin(\frac{π}{4})+9\cos(\frac{π}{4})
arccos(3/(sqrt(14)))	\arccos(\frac{3}{\sqrt{14}})
cos(2(pi/4))	\cos(2(\frac{π}{4}))
arctan(5/(-3))	\arctan(\frac{5}{-3})
sin(pi/2)+cos(pi/2)	\sin(\frac{π}{2})+\cos(\frac{π}{2})
tan((9pi)/8)	\tan(\frac{9π}{8})
cos(-22.5)	\cos(-22.5^{\circ\:})
cos(2*(3pi)/4)	\cos(2\cdot\:\frac{3π}{4})
(2tan((5pi)/6))/(1-tan^2((5pi)/6))	\frac{2\tan(\frac{5π}{6})}{1-\tan^{2}(\frac{5π}{6})}
cos(-(7pi)/3)	\cos(-\frac{7π}{3})
tan(arccos(-3/5))	\tan(\arccos(-\frac{3}{5}))
arccos(0.77)	\arccos(0.77)
arccos(0.97)	\arccos(0.97)
sin(5/2 pi)	\sin(\frac{5}{2}π)
(tan(43)-tan(13))/(1+tan(43)tan(13))	\frac{\tan(43^{\circ\:})-\tan(13^{\circ\:})}{1+\tan(43^{\circ\:})\tan(13^{\circ\:})}
cos((5pi)/7)	\cos(\frac{5π}{7})
-cot(pi/6)	-\cot(\frac{π}{6})
1-2sin^2(135)	1-2\sin^{2}(135^{\circ\:})
arcsin(0.92)	\arcsin(0.92)
arcsin(0.54)	\arcsin(0.54)
cos((17pi)/2)	\cos(\frac{17π}{2})
csc(510)	\csc(510^{\circ\:})
cos(1.1)	\cos(1.1)
arcsin(-(sqrt(3))/3)	\arcsin(-\frac{\sqrt{3}}{3})
arctan((-1.8)/(2.7))	\arctan(\frac{-1.8}{2.7})
csc(-(11pi)/6)	\csc(-\frac{11π}{6})
tan((25pi)/6)	\tan(\frac{25π}{6})
cos(82)	\cos(82^{\circ\:})
csc(5pi)	\csc(5π)
arctan(-0.8)	\arctan(-0.8)
tan(pi/4)+sec(pi/4)	\tan(\frac{π}{4})+\sec(\frac{π}{4})
sec(-315)	\sec(-315^{\circ\:})
4cos(120)	4\cos(120^{\circ\:})
tan(arcsin(9/10))	\tan(\arcsin(\frac{9}{10}))
arccos(4/6)	\arccos(\frac{4}{6})
cos(2arctan(-4/3))	\cos(2\arctan(-\frac{4}{3}))
arccos(0.1351)	\arccos(0.1351)
arccos((2sqrt(3))/4)	\arccos(\frac{2\sqrt{3}}{4})
arctan(8/12)	\arctan(\frac{8}{12})
sin(2*pi/6)	\sin(2\cdot\:\frac{π}{6})
2+3tan^2(34)-3csc^2(56)	2+3\tan^{2}(34^{\circ\:})-3\csc^{2}(56^{\circ\:})
2sin^2(pi/2)-sin(pi/2)-1	2\sin^{2}(\frac{π}{2})-\sin(\frac{π}{2})-1
sin(45)*cos(45)	\sin(45^{\circ\:})\cdot\:\cos(45^{\circ\:})
1/(cos(1))	\frac{1}{\cos(1)}
cosh(pi/4 i)	\cosh(\frac{π}{4}i)
cos(7/4 pi)	\cos(\frac{7}{4}π)
arctan(3/10)	\arctan(\frac{3}{10})
arccot((-sqrt(3))/3)	\arccot(\frac{-\sqrt{3}}{3})
sin(1)-sin(-1)	\sin(1)-\sin(-1)
cos(3*pi)	\cos(3\cdot\:π)
-csc(pi/2)	-\csc(\frac{π}{2})
-sin(pi/3)+sec^2(pi/3)	-\sin(\frac{π}{3})+\sec^{2}(\frac{π}{3})
sec((-pi)/4)	\sec(\frac{-π}{4})
4cos(40)	4\cos(40^{\circ\:})
sin(900)	\sin(900^{\circ\:})
100sin(45)	100\sin(45^{\circ\:})
1-sin(pi/6)	1-\sin(\frac{π}{6})
sec(30)cos(30)	\sec(30^{\circ\:})\cos(30^{\circ\:})
arccos(2/pi)	\arccos(\frac{2}{π})
cot(-3pi)	\cot(-3π)
4cos(2)	4\cos(2)
arcsin(5/11)	\arcsin(\frac{5}{11})
sin(60)cos(30)	\sin(60^{\circ\:})\cos(30^{\circ\:})
tan(0.8)	\tan(0.8)
10*cos(60)	10\cdot\:\cos(60^{\circ\:})
sin((2pi)/3+(5pi)/6)	\sin(\frac{2π}{3}+\frac{5π}{6})
cos((25pi)/6)	\cos(\frac{25π}{6})
-4sin((2pi)/3)	-4\sin(\frac{2π}{3})
arcsin(10)	\arcsin(10)
sin(0.9)	\sin(0.9)

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