Question

Будь ласка cos (x+π/3)≥√3/2
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Answer 1

Объяснение:

cos(x+π/3)≥√3/2

-5π/6+2πn≤x+π/3≤π/6+2πn,n∈z

-7π/6+2πn≤x≤ -π/6+2πn,n∈z