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how do i know which one's a cos and which one's a sine graph

also i have to find the equations of these​

How Do I Know Which Ones A Cos And Which Ones A Sine Graph Also I Have To Find The Equations Of These class=

Sagot :

Answer:

Look at the graphs of the sine and cosine functions on the same coordinate axes, as shown in the following figure. The graph of the cosine is the darker curve; note how it's shifted to the left of the sine curve.