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Input a range of numbers into an expression

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Brooks Nelson
Brooks Nelson 2018-1-23
回答： Walter Roberson 2018-1-23
tan(x)=sin(x)/cos(x) for x=-π/2, -π/4, 0, π/4, π/2.
I inputted a range for x;
>> x=[-pi/2 -pi/4 0 pi/4 pi/2]
x =
-1.5708 -0.7854 0 0.7854 1.5708
I have the numbers in the workspace but I am trying to prove that when x is put into exquation it outputs the proof that tan(x) is equal to the sin(x)/cos(x).
Thanks

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Walter Roberson
Walter Roberson 2018-1-23
Hint: sin(x)./cos(x)

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