Missing j in complex form of sine function

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EastWindBreaks
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Homework Statement


Slide titled Computing Positions of any point on the links: showing a four-bar linkage diagram with labelled points S, U, P, A, B and angles, beside equations for R_S, R_U, R_P, R_A and R_PA written with complex exponentials and trigonometric functions.


Homework Equations

The Attempt at a Solution


Equation R_PA = p(cos(θ3 + δ3) + sin(θ3 + δ3)), with the sine term written without a j factor.

since they are in complex vector form, its missing a " j " on the sin() part, correct?
 
Attachments
  • Slide titled Computing Positions of any point on the links: showing a four-bar linkage diagram with labelled points S, U, P, A, B and angles, beside equations for R_S, R_U, R_P, R_A and R_PA written with complex exponentials and trigonometric functions.
    upload_2017-11-7_6-51-13.png
    40.4 KB · Views: 652
  • Equation R_PA = p(cos(θ3 + δ3) + sin(θ3 + δ3)), with the sine term written without a j factor.
    upload_2017-11-7_6-52-17.png
    2.9 KB · Views: 800

Discussion

Charles Link said:
I believe you have it correct. It looks like a typo to me.
thank you
 
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