MATH
823+556=?
1,379
12*9=?
108
46*12=?
552
Simplify: (x+4)*(2x+5)
2x squared+13x+20
2⁻³
1/8
Systems of equations: solve using elimination method
X+2y-z = -6
3x-y+z = 8
4x-y-2z = 0
y = -2
x = 1
z = 3
Systems of equations: solve using substatution method
y-6x = -15
z-3x = 2
x+2y+3z = 86
x = 5
y = 15
z = 17
cos^2(x) + sin^2(x)
1
1 + tan^2(x)
sec^2(x)v
cos^2(x)
1-sin^2(x)
sin^2(x)
1-cos^2(x)
tan^2(x)
sec^2(x)-1
cot^2(x)+1
csc^2(x)
sin(2x)
2sin(x)cos(x)
cos(2x)
cos^2(x)-sin^2(x)