Given sina = 3/5 and sinB=5/13 find cos(a-B):____
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Answer:
Given the parent function:
Rule for Horizontal Stretches and Compression:
If parent function y=f(x), then y=f(cx) gives a horizontal stretch when c >1 and
a horizontal compression when 0<c<1.
therefore, by above definition
the function f(x) = is a Horizontal compression by a factor of
therefore, the function f(x) = is HORIZONTAL COMPRESSION of the parent function by a factor of 0.25