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Evaluate. cos225^(@)-sin225^(@)+tan495...

Evaluate.
`cos225^(@)-sin225^(@)+tan495^(@)-cot495^(@)`

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Find cos 225^(@) -sin 225^(@) +tan 495^(@) - cot 495^(@) .

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Knowledge Check

  • cos 225^(@)+ sin 165^(@)=

    A
    0
    B
    `(sqrt(3)-1)/(sqrt(3))`
    C
    `(sqrt(3)-1)/(2sqrt(2))`
    D
    `(sqrt(2)+1)/(sqrt(2))`

  • The value of sin^(-1)(cos2)-cos^(-1)(sin2)+tan^(-1)(cot4)-cot^(-1)(tan4)+sec^(-1)(cosec6)-cosec^(-1)(sec6) is

    A
    0
    B
    `3pi`
    C
    `8-3pi`
    D
    `5pi-16`

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    Evaluate cos^(2)45^(@)+cos^(2)135^(@)+cos^(2)225^(@)+cos^(2)315^(@) .

    Evaluate the following. (sin 30^(@) + tan 45^(@) - cosec 60^(@))/(cot 45^(@) + cos 60^(@) -sec 30^(@))

    Evaluate the following (sin 30^(@) +tan 45^(@) -cosec 60^(@) )/( cot 45^(@)+cos 60^(@) -sec 30^(@))

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    Prove that (sin150^(@)-5cos300^(@)+7tan 225^(@))/(tan 135^(@) + 3 sin 210^(@))=-2

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