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المتطابقات المثلثية 5

Quiz by wafaa tellawi

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5 questions
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  • Q1
    60s
  • Q2

    (a+b)(a-b) =

    a2-b2 

    a2+b2 

    a2-2ab+b2

    a2+2ab+b2

    60s
  • Q3

    1-sin2x =

    cos2 x

    -cos2x

    csc2 x

    sec2 x

    60s
  • Q4

    1-cos2x =

    sec2 x

    sin2 x

    csc2 x

    -sin2x

    60s
  • Q5

    tan2x =

    sec2x - 1

    csc2x - 1

    1-csc2x

    1-sec2x

    60s

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