Question

cos(x/2-П/7)=корень3/2ПОМОГИТЕ СРОЧНО НАДО

Answer 1

cos(x/2-П/7)=корень3/2

x/2-pi/7=±pi/6+2pik

x/2=±pi/6+pi/7+2pik

x=±pi/6*2+pi/7*2+2pik*2

x=±pi/3+2pi/7+4pik, k = Z

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