10th Grade Trigonometry Part I (Nikoleta Simeonova)

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Quizzes Created: 6 | Total Attempts: 763
Questions: 20 | Attempts: 90

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10th Grade Trigonometry Part I (Nikoleta Simeonova) - Quiz


Questions and Answers
  • 1. 

    , . For and is true that:

    • A.
    • B.
    • C.
    • D.

      Cannot be defined.

    Correct Answer
    B.
  • 2. 

    , . For  and is true that:

    • A.
    • B.
    • C.
    • D.

      Cannot be defined.

    Correct Answer
    A.
  • 3. 

    The value of the following expression is

    Correct Answer
    B.
  • 4. 

    The value of the following expression is:

    • A.

      0

    • B.

      1

    • C.

      -1

    • D.
    • E.
    Correct Answer
    C. -1
    Explanation
    The value of the expression is -1 because when you subtract 1 from 0, the result is -1.

    Rate this question:

  • 5. 

    The value of the following expression is:

    • A.
    • B.
    • C.
    • D.

      2

    Correct Answer
    D. 2
  • 6. 

    The value of the following expression is:

    • A.
    • B.
    • C.

      1

    • D.

      Undefined

    • E.

      0

    • F.

      -1

    Correct Answer
    B.
  • 7. 

    The value of the following expression is:

    • A.
    • B.

      -1

    • C.

      1

    • D.

      0

    • E.
    • F.
    Correct Answer
    C. 1
  • 8. 

    Define the value of the following expression .

    Correct Answer
    1
    Explanation
    The value of the expression is 1 because there is no operation or variable given in the question. Therefore, the expression is simply the number 1.

    Rate this question:

  • 9. 

    The following identity is true or false: ?

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
  • 10. 

    The following identity is true or false:

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The given question asks if a certain identity is true or false. The answer provided is "True," indicating that the identity is indeed true. However, without any information about the specific identity mentioned in the question, it is not possible to provide a detailed explanation for why it is true.

    Rate this question:

  • 11. 

    The value of the following expression is:

    • A.

      >0

    • B.

    • C.

      =0

    • D.

      Cannot be defined.

    Correct Answer
    B.
    Explanation
    The given expression is a comparison between two values, 0 and 0. When comparing two equal values, the result is true, which can be represented as 1. Therefore, the value of the expression is 1.

    Rate this question:

  • 12. 

    The value  of the following expression is:  

    • A.

    • B.

      >0

    • C.

      =0

    • D.

      Cannot be defined.

    Correct Answer
    A.
  • 13. 

    Simplify the expression: .

    Correct Answer
    2
  • 14. 

    Simplify the expression: .

    Correct Answer
    -cotgx
  • 15. 

    For any angle , the value of the expression is: (you can choose more than one option)

    • A.

      1

    • B.

      -1

    • C.

      Sinx+cosx

    • D.

      -sinx-cosx

    • E.
    • F.
    Correct Answer(s)
    C. Sinx+cosx
    D. -sinx-cosx
    Explanation
    The given expression is sinx+cosx and -sinx-cosx. For any angle, the value of sinx and cosx varies depending on the angle. Therefore, the value of sinx+cosx and -sinx-cosx will also vary depending on the angle. Hence, both options sinx+cosx and -sinx-cosx can be correct for any angle.

    Rate this question:

  • 16. 

    Simplify the expression: .

    Correct Answer(s)
    2
  • 17. 

    (you can choose more than one option)

    • A.

      0.5

    • B.

      -0.5

    • C.
    • D.
    • E.

      0

    • F.
    • G.
    Correct Answer
    A. 0.5
    Explanation
    The correct answer is 0.5 because it is the only positive value among the given options. Both -0.5 and 0 are negative or non-positive values, respectively.

    Rate this question:

  • 18. 

    If , what is the value of the expression ?

    • A.

      Cannot be defined.

    • B.
    • C.

      -7

    • D.

      7

    • E.

      0

    Correct Answer
    B.
    Explanation
    The expression cannot be defined because the value of a number divided by zero is undefined in mathematics.

    Rate this question:

  • 19. 

    If , what is the value of the expression ?

    • A.

      Cannot be defined.

    • B.

      -2

    • C.

      2

    • D.
    • E.
    • F.
    Correct Answer
    D.
  • 20. 

    Simplify the expression:

    Correct Answer
    1

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  • Current Version
  • Nov 28, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 20, 2013
    Quiz Created by
    ACS_Math
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