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  1. C

    Unit circle questions

    Could anyone please show me how to do these questions 1. sinx=cosx 2. 2sinx + cosx =0 3. tan x= 2sinx 4. cotx = 2cosx 5. sin2x =tanx Thanks
  2. C

    Trig problems

    just want to know how to do question 2 because i dont know how to do it
  3. C

    Trig problems

    I need help with these questions Find the general solution to the following equations 1. tan a = sin2a 2. cosx - sinx =1 3. sin4x - sin2x =0 4. cos 3a = cos a 5. 3tan 2a =2tan a Also does anyone know a good latex website that has the square and cube root for equations Thanks
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