anonymous
  • anonymous
help
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
write down what sin(a+b) and cos(a+b) to see if either pattern fits. If one does you should be able to reverse that trig identity back to one trig function one angle.
anonymous
  • anonymous
sin(a+b)=sinaxcosb +cosaxsinb using this formula to solve the problem
phi
  • phi
I think they want you to memorize http://www.mathwarehouse.com/trigonometry/identities/angle-sum-formula.php

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anonymous
  • anonymous
|dw:1353342333243:dw|
anonymous
  • anonymous
|dw:1353342478497:dw|
anonymous
  • anonymous
can you please type it out i dont understand it
anonymous
  • anonymous
hey plz check the question?
anonymous
  • anonymous
umm why?
anonymous
  • anonymous
becoz the question is wrong
anonymous
  • anonymous
noo
anonymous
  • anonymous
u know this answer
anonymous
  • anonymous
noooooooooooooo
anonymous
  • anonymous
use 6 in place of 7. use this no. to check the question

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