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Rezolvati ecuatia trigonometrica sin x + √3 cos x =1

Răspuns :

sinx+√3cosx=1 ⇔ 2(1/2sinx+√3/2cosx)=1 ⇔ 2(sinxcosπ/3+sinπ/3cosx)=1
⇔ sin(x+π/3)=1/2, deci x+π/3=(-1)^k*arcsin1/2+kπ,sau x=-π/3+(-1)^kπ/6+kπ, k∈Z, rezulta x∈{-π/2+(2k+1)π| k∈Z}∪{-π/6+2kπ| k∈Z}={π/2+2kπ}∪
∪{-π/6+2kπ},k∈Z