Ответ:α=60°
Объяснение:
axb=IaI x IbI x cos α=0.5
IaI =1 , IbI=1 => cosα=0.5 => α=60°
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Ответ:α=60°
Объяснение:
axb=IaI x IbI x cos α=0.5
IaI =1 , IbI=1 => cosα=0.5 => α=60°