QUIZ
Pythagorean Identities
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  • Question 1
    30 seconds
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    Q.

     sin2x 1=?\sin^2x\ -1=?  

    answer choices

     cos2x-\cos^2x  

     cos2x\cos^2x  

     cos2x1\cos^2x-1  

     1cos2x1-\cos^2x  

  • Question 2
    30 seconds
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    Q.

     tan2x =?\tan^2x\ =?  



    answer choices

     sec2x1\sec^2x-1  

     sec2x+1\sec^2x+1  

     1sec2x1-\sec^2x  

  • Question 3
    30 seconds
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    Q.

    Which of the following is not a Pythagorean Identity?

    answer choices

    cot2x+1=csc2x\cot^2x+1=\csc^2x

    cot2xcsc2x=1\cot^2x-\csc^2x=-1

    csc2x+1=cot2x\csc^2x+1=\cot^2x

    csc2xcot2x=1\csc^2x-\cot^2x=1

  • Question 4
    20 seconds
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    Q.

     1cos2x=?1-\cos^2x=?  



    answer choices

     sin2x\sin^2x  

     tan2x\tan^2x  

     cot2x\cot^2x  

     csc2x\csc^2x  

  • Question 5
    30 seconds
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    Q.

     csc2x=?\csc^2x=?  

    answer choices

     1+cot2x1+\cot^2x  

     1cot2x1-\cot^2x  

     cot2x1\cot^2x-1  

  • Question 6
    20 seconds
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    Q.

     1sin2x=?1-\sin^2x=?  



    answer choices

     tan2x\tan^2x  

     cos2x\cos^2x  

     cot2x\cot^2x  

     csc2x\csc^2x  

  • Question 7
    20 seconds
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    Q.

     (sinx)(cosx)=?\frac{\left(\sin x\right)}{\left(\cos x\right)}=?  

    answer choices

     cscx\csc x  

     secx\sec x  

     cotx\cot x  

     tanx\tan x  

  • Question 8
    30 seconds
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    Q.

    Which of the following is NOT a Pythagorean Identity?

    answer choices

    tan2x+1=sec2x\tan^2x+1=\sec^2x

    cos2x=cos2xsin2x\cos2x=\cos^2x-\sin^2x

    sin2x+cos2x=1\sin^2x+\cos^2x=1

    1+cot2x=csc2x1+\cot^2x=\csc^2x

  • Question 9
    20 seconds
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    Q.

     cos2x+sin2x=?\cos^2x+\sin^2x=?  



    answer choices

     11  

     csc2x+sec2x\csc^2x+\sec^2x  

     sin2x\sin^2x  

     1sin2x1-\sin^2x  

  • Question 10
    30 seconds
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    Q.

    Rewrite tan(x) in terms of sin(x) and cos(x)

    answer choices

    tan(x) = cos(x) / sin(x)

    tan(x) = 1 / cot(x)

    tan(x) = sin(x) / cos(x)

    tan(x) = opp / adj

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