okay so my previous question was answered however i know that:
2cos(x).cos(9x)
has the derivative:
-18cos(x)sin(9x) - 2sin(x)cos(9x)
But will 2[cos1/2(f1-f2)t][cos1/2(f1+f2)t] have the same derivative?
with f1= 10 and f2=8
okay so my previous question was answered however i know that:
2cos(x).cos(9x)
has the derivative:
-18cos(x)sin(9x) - 2sin(x)cos(9x)
But will 2[cos1/2(f1-f2)t][cos1/2(f1+f2)t] have the same derivative?
with f1= 10 and f2=8