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If y = A· cosbx
and
b
is nonzero number, then for any real number
c
the phase shift,
s,
of the graph of the function
y = A· cos(bx + c)
respecting to the graph of function
y = A· cos bx
is defined to be
.
The shift is to the left if
is negative, and to the right if
is positive. |
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