Product to Sum
sin(x) cos(y)
what is 1/2(sin(x+y)+ sin(x-y))
sin(x) + sin(y)
what is 2sin(x+y/2)cos(x-y/2)
sin(x+y)
what is sin(x)cos(y) + cos(x)sin(y)
sin^2x + cos^2x
what is 1
cos (x) sin (y)
what is 1/2(sin(x+y) - sin(x-y))
sin(x) - sin(y)
what is 2cos(x+y/2)sin(x-y/2)
cos(x/2)
what is +-(1+cos(u)/2)^1/2
cos(x+y)
cos(x)cos(y) - sin(x)sin(y)
tan^2x + 1
what is sec^2x
cos(x) cos(y)
what is 1/2(cos(x+y) + cos(x-y))
cos(x) + cos(y)
what is 2cos(x+y/2)cos(x-y/2)
tan(x/2)
what is 1-cos(u)/sin(u)
what is sin(u)/1+cos(u)
sin(x-y)
sin(x)cos(y) - cos(x)sin(y)
1+cot^2x
what is csc^2x
sin(x) sin(y)
what is 1/2(cos(x-y) - cos(x+y))
cos(x) - cos (y)
what is -2sin(x+y/2)sin(x-y/2)
tan^2x
what is 1-cos2x/1+cos2x
cos(x-y)
cos(x)cos(y) + sin(x)sin(y)
Show symmetry for sin(-x), cos(-x), and tan(-x)
what is -sin(x), cos(x), -tan(x)
Mathematical Analysis of a vibrating violin string of length L involves functions such that
f(x) = sin (πn(x)/L) cos(kπn(t)/L)
where n is an integer, k is a constant, and t is time. Express f as a sum of two sine functions
what is f(x) = 1/2sin(πn/L)(x+kt) + 1/2sin(πn/L)(x-kt)
sin5t + sin3t = 0
what is π/4n
Find the values of sin(θ/2), cos(θ/2) and tan(θ/2)
tanθ = 1 ; -180° < θ < -90°
what is
-1/2 (2 + (2)^1/2)^1/2
1/2 (2-(2)^1/2)^1/2
-(2)^1/2 -1
Find
tan(x+y)
tan(x-y)
what is
(tan(x)+tan(y))/(1-tan(x)tan(y))
(tan(x)-tan(y))/(1-tan(x)tan(y))
Show Symmetry for csc(-x), sec(-x), cot(-x)
what is -csc(x), sec(x), -cot(x)