Asked by suki mae
the function y=cos(x) is dilated horizontally by a factor of 1/2 what's the new equation?
y=.......
and what is the period of the new function
y=.......
and what is the period of the new function
Answers
Answered by
oobleck
y = cos(2x)
since 2x grows twice as fast as x, the graph is compressed into 1/2 the distance.
cos(kx) has a period of 2π/k
since 2x grows twice as fast as x, the graph is compressed into 1/2 the distance.
cos(kx) has a period of 2π/k
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