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ivolga24 [154]
3 years ago
13

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

Mathematics
2 answers:
Cloud [144]3 years ago
7 0

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.

grandymaker [24]3 years ago
7 0
Your answer is b. y = sinx

Hope I helped!
Let me know if you need anything else!
~ Zoe
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