if a/b+b/a = -1, and ab=0, then which statement is true ?​

Question

if a/b+b/a = -1, and ab=0, then
which statement is true ?​

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Camila 2 months 2021-12-03T07:32:35+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-12-03T07:34:21+00:00

    Step-by-step explanation:

    Its given that AD=BC….(i)

    AD is perpendicular to AB i.e, ∠OAD=90

    o

    BC is perpendicular to AB i.e, ∠OBC=90

    o

    We have to prove that CD bisects AB i.e OA=OB

    Since line CD and AB intersect,

    ∠AOD=∠BOC [vertically opposite angle]….(ii)

    In △BOC and △AOD,

    ∠BOC=∠AOD [from (ii)]

    ∠CBO=∠DAO [both angles are 90

    o

    ]

    ⇒BC=AD

    ∴△BOC≅△AOD [AAS Congruence Rule]

    ∴BO=AO [CPCT]

    Hence CD bisects AB.

    Answer By

    Harshini

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