如图,在直角坐标系中,四边形OABC为直角梯形,A点坐标为(10,0),B点坐标为(6,3),动点P,Q分别从C,A两点

1个回答

  • (1)Q(10-2T,0)P(T 3)

    ∵的BP“AQ

    ∴PQAB一个平行四边形时,BP = AQ

    BP = 6吨,AQ = 10-2T

    BP = AQ介绍了6吨= 10-2T

    解决方案T = 2

    (2)∵BP“AQ

    ∴PQAB等腰梯形QP = AB

    AB =√(4 ^ 2 3 ^ 2)= 5

    PQ =√[(10-3吨)^ 2 3 ^ 2] =√(9吨^ 2 - 60吨+ 109)

    AP = PQ推出9(T).但该模型不能反映污染 - 诱导^ 2-60T +109 = 25

    (T).但该模型不能反映污染 - 诱导^ 2-60T +84 = 0

    3吨^ 2-20T +28 = 0

    (3T?14)(T-2)= 0

    >解决方案T1 = 14/3,T2 = 2

    ∵T = 2 PQAB一个平行四边形((1)已被证实)

    吨= 14/3