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What is the bark of stem?...

What is the bark of stem?

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Knowledge Check

  • A unit vector in the plane of the vectors 2bari +barj+bark, bari - barj+ bark and orthogonal to 5bari +2barj +6bark is

    A
    `(6bari-6bark)/(sqrt(61))`
    B
    `(3barj-bark)/(sqrt(10))`
    C
    `(2bari-5barj)/(sqrt(29))`
    D
    `(2bari+barj-2bark)/3`

  • The scalar product of the vector bari+barj+bark " with the unit vector parallel to sum of the vectors " 2bari+4barj-5bark and lambdabari+2barj+3bark is equal to 1. The the value of the constant lambda is

    A
    `1/3`
    B
    1
    C
    `1/2`
    D
    2

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    Explore conceptually related problems

    The bark of woody plants is dead but the inner layers inside the bark are living . How do they get oxygen and release carbon dioxide ?

    If bara=bari+2barj+bark,barb=2bari+barj-bark,barc=3bari-barj+2bark then find baraxx(barbxxbarc),(baraxxbarb)xxbarc then show that they are not equal.

    If a ring of bark is removed from an actively growing plant, what will happen and why?

    If the shortest distance between the lines barr=(bari +barj-bark)+s(2bari +barj+lamdabark) and barr = (2bari +bark)+t(bari + barj +bark) is zero find the value of lamda .

    Prove that the four points 4bari + 5barj +bark, - (barj + bark) , 3bari + 9barj + 4bark , - 4bari + 4barj +4bark are coplanar.

    Find the volume of the tetrahedron having the coterminus edges 2bari + barj +bark, bari -3barj +2bark, bari -bark .

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