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test_cos_rewrite()
cos(x)
rewrite(exp)
exp(I*x)
exp(-I*x)
cos(x)
rewrite(tan)
tan(x/2)
tan(x/2)
cos(x)
rewrite(cot)
cot(x/2)
cot(x/2)
cos(sinh(x)
subs(x, 3)
n()
cos(x)
rewrite(exp)
subs(x, sinh(3)
n()
cos(cosh(x)
subs(x, 3)
n()
cos(x)
rewrite(exp)
subs(x, cosh(3)
n()
cos(tanh(x)
subs(x, 3)
n()
cos(x)
rewrite(exp)
subs(x, tanh(3)
n()
cos(coth(x)
subs(x, 3)
n()
cos(x)
rewrite(exp)
subs(x, coth(3)
n()
cos(sin(x)
subs(x, 3)
n()
cos(x)
rewrite(exp)
subs(x, sin(3)
n()
cos(cos(x)
subs(x, 3)
n()
cos(x)
rewrite(exp)
subs(x, cos(3)
n()
cos(tan(x)
subs(x, 3)
n()
cos(x)
rewrite(exp)
subs(x, tan(3)
n()
cos(cot(x)
subs(x, 3)
n()
cos(x)
rewrite(exp)
subs(x, cot(3)
n()
cos(log(x)
rewrite(Pow)
cos(x)
rewrite(sec)
sec(x)
cos(x)
rewrite(sin)
sin(x + pi/2, evaluate=False)
cos(x)
rewrite(csc)
csc(-x + pi/2, evaluate=False)
cos(sin(x)
rewrite(Pow)
cos(sin(x)
test_cos_expansion()
cos(x + y)
expand(trig=True)
cos(x)
cos(y)
sin(x)
sin(y)
cos(x - y)
expand(trig=True)
cos(x)
cos(y)
sin(x)
sin(y)
cos(y - x)
expand(trig=True)
cos(x)
cos(y)