Did i simplify this correctly

  • Thread starter jimbo71
  • Start date
  • #1
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Homework Statement


sqrt((tcost)^2+(-tsint)^2


Homework Equations





The Attempt at a Solution


pulled out the sin^2t+cos^2t
added the two t^2
took the sqrt of
t*sqrt(2)
 

Answers and Replies

  • #2
Dick
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No, it's not correct. Factor the inside of the sqrt before you start 'pulling things out'.
 
  • #3
81
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so is the answer simply t
 
  • #4
Dick
Science Advisor
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so is the answer simply t
Almost right. |t| actually.
 

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