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In DeltaABC, if AD is the altitude and O...

In `DeltaABC,` if AD is the altitude and O is the orthocentre of `DeltaABC` then AO:OD=

A

`Tan A " TanB + TanC`

B

`TanB + Tan C : Tan A`

C

`CosA : CosB + CosC`

D

`CotA : CotB + CotC`

Text Solution

Verified by Experts

The correct Answer is:
b
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Knowledge Check

  • In DeltaABC if r_(1)=R then

    A
    `CosA+CosB+CosC=2`
    B
    `CosB+CosC=CosA`
    C
    `CosA+CosB=CosC`
    D
    `CosB+CosC+CosA`

  • In DeltaABC , if b cos A= aCosB then the triangle is

    A
    Right-angled
    B
    isosceles
    C
    Equilateral
    D
    scalene

  • In DeltaABC, if C=90^(@) then R+r=

    A
    `a+b`
    B
    `(a+b)/(2)`
    C
    b+c
    D
    `(b+c)/(2)`

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