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sara1234

help

  • one year ago
  • one year ago

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  1. freewilly922
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    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.

    • one year ago
  2. sunnymony
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    sin(a+b)=sinaxcosb +cosaxsinb using this formula to solve the problem

    • one year ago
  3. phi
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    I think they want you to memorize http://www.mathwarehouse.com/trigonometry/identities/angle-sum-formula.php

    • one year ago
  4. sunnymony
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    |dw:1353342333243:dw|

    • one year ago
  5. sunnymony
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    |dw:1353342478497:dw|

    • one year ago
  6. sara1234
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    can you please type it out i dont understand it

    • one year ago
  7. sunnymony
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    hey plz check the question?

    • one year ago
  8. sara1234
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    umm why?

    • one year ago
  9. sunnymony
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    becoz the question is wrong

    • one year ago
  10. sara1234
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    noo

    • one year ago
  11. sunnymony
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    u know this answer

    • one year ago
  12. sara1234
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    noooooooooooooo

    • one year ago
  13. sunnymony
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    use 6 in place of 7. use this no. to check the question

    • one year ago
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