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Problem
#PRU-65614
Problems
Algebra
Functional equations
Calculus
Functions of one variable. Continuity
Functions. Continuity (other)
Methods
Proof by contradiction
13–15
3.0
Problem
Does there exist a function
f
(
x
)
defined for all real numbers such that
f
(
sin
x
)
+
f
(
cos
x
)
=
sin
x
?
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