hey251
hey251
12-01-2018
Mathematics
contestada
cosxsinx-2cosx=0
I dont know how to solve this
Respuesta :
tynollette
tynollette
12-01-2018
factor out cosx: cosx(sinx-2)=0
cosx=0 or sinx-2=0
cosx=0 or sinx=2
the largest value of sinx is 1, sinx will never be 2, so cosx=0, x=π/2 or 3π/2 are the two answers.
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phân tích đa thức: x^3+3x^2+3x+1
