• 2022-06-12
    已知向量[tex=5.643x1.286]2HKJ+34uBXu3DbhHKLrGKQ==[/tex],[tex=5.5x1.286]YxBSYjqnkOglv+HFGSt5XQ==[/tex],[tex=5.5x1.286]A94SJl+klKm/VJjddX9d+A==[/tex],求:[tex=6.857x1.286]+8TpnXhNjVA8ASM37C57bPO2VHJACzhdrkBhWbOw8pepTAtBRrxQ67nhgbDgIjYW[/tex] .