How do i plot this in matlab

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Ian Wilson
Ian Wilson 2019-9-9
评论： madhan ravi 2019-9-9
x = [0:pi/2:2*pi]
y = -(sin(pi/2*cos(x))(-pi/2*sin(x))/cos(x)
Keep getting the "Error: ()-indexing must appear last in an index expression." I understand what the error means, but I've tried replacing some of the () with {}, and I'm still getting the same error. I guess I am unsure which () need to be replaced to {}.

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madhan ravi
madhan ravi 2019-9-9
y = -(sin(pi/2*cos(x))Operator missing here(-pi/2*sin(x))./cos(x)

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