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If x is in degrees, then: (d)/(dx)(cosx...

If x is in degrees, then: `(d)/(dx)(cosx)=`

A

`-sinx`

B

`-(180)/(pi)sinx`

C

`-(pi)/(180)sinx`

D

`sinx`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • If x is measured in degree (d)/(dx) then (cos x ) is equal to

    A
    `- sinx`
    B
    `-(180)/pi sin x`
    C
    `-(pi)/(180) sin x`
    D
    sin x

  • (d)/(dx)((cosx)/(1+sinx))=

    A
    `(-1)/(1+sinx)`
    B
    `(1)/(1+sinx)`
    C
    `(1)/(1+cosx)`
    D
    `(1)/(1-cosx)`

  • (d)/(dx)((sinx)/(1+cosx))=

    A
    `(-1)/(1+cosx)`
    B
    `(1)/(1+cosx)`
    C
    `(1)/(1+sinx)`
    D
    `(-1)/(1+sinx)`

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    Solve the differential equation: (dy)/(dx)+ycotx=2cosx

    Differentiate each of the following with respect to x in following question: (sinx+cosx)^(2)

    Find the general solution of each of the following differential equations: (cosx)(dy)/(dx)+cos2x = cos 3x

    (d)/(dx)(cosx-(1)/(3)cos^(3)x)=

    d/(dx)(x^(2) + cosx)^(4) =

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