Find all the values of x which satisfy the equation (a) (b) Show that the sum of the three angles whose tangent have the following values , , is
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Originally Posted by thereddevils Find all the values of x which satisfy the equation (a) (b) Show that the sum of the three angles whose tangent have the following values , , is (a) Let and . Then you need the value(s) of x such that . Solve this equation carefully - one of the solutions is extraneous (Google it). I might have time for (b) later (although I'd prefer to see if you now have some ideas on how to do it ....)
Use the identity: a) The correct solution is b)
Originally Posted by mr fantastic (a) Let and . Then you need the value(s) of x such that . Solve this equation carefully - one of the solutions is extraneous (Google it). I might have time for (b) later (although I'd prefer to see if you now have some ideas on how to do it ....) thanks , i will give it a shot !
below is the graph of arctan x + arctan 2x = pi/2; (sqrt of 2)/2 is indeed correct
Originally Posted by thereddevils Find all the values of x which satisfy the equation (b) Show that the sum of the three angles whose tangent have the following values , , is Lets call the 3 angles a , b, and c . and gives Am i correct ?
Originally Posted by thereddevils Lets call the 3 angles a , b, and c . and gives Am i correct ?
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