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Which graph represents a phase shift of pi/2 units right for the graph of y=cos x

User Thatcher
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3 votes
Your answer is b. y = sinx

Hope I helped!
Let me know if you need anything else!
~ Zoe
User Bob Makowski
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3 votes

Solution:

we are given that
y=cos x

Here we are going to plot two curves one for cosx and the othere also of cosx but after making a phase shift of
\pi/2

When we do a phase shift by an angle of theta , in that case actaully we add angle negative theta .

For example when we shift the phase of sinx by
\pi/2 we get
sin(x-\pi/2).

Hence we are going to plot the curve of


y=cosx\\ \\ y=cos(x-\pi/2)=sinx\\

Hence the correct option is B.

Which graph represents a phase shift of pi/2 units right for the graph of y=cos x-example-1
User Ged
by
7.6k points

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