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    Worksheet - Iii: Class: C4 (C Batch) Subject: Mathematics

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    siva
    This mathematics worksheet contains 10 problems involving trigonometric identities and functions such as sine, cosine, tangent, cotangent, cosecant, and secant. The problems cover evaluating trigonometric expressions, simplifying ratios, and determining trigonometric identities. Students are asked to solve each problem and select the correct answer from the multiple choice options provided.

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    Download as PDF, TXT or read online from Scribd

    Worksheet - Iii: Class: C4 (C Batch) Subject: Mathematics

    Uploaded by

    siva
    159 views1 page
    This mathematics worksheet contains 10 problems involving trigonometric identities and functions such as sine, cosine, tangent, cotangent, cosecant, and secant. The problems cover evaluating trigonometric expressions, simplifying ratios, and determining trigonometric identities. Students are asked to solve each problem and select the correct answer from the multiple choice options provided.

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    This mathematics worksheet contains 10 problems involving trigonometric identities and functions such as sine, cosine, tangent, cotangent, cosecant, and secant. The problems cover evaluating trigonometric expressions, simplifying ratios, and determining trigonometric identities. Students are asked to solve each problem and select the correct answer from the multiple choice options provided.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    159 views1 page

    Worksheet - Iii: Class: C4 (C Batch) Subject: Mathematics

    Uploaded by

    siva
    This mathematics worksheet contains 10 problems involving trigonometric identities and functions such as sine, cosine, tangent, cotangent, cosecant, and secant. The problems cover evaluating trigonometric expressions, simplifying ratios, and determining trigonometric identities. Students are asked to solve each problem and select the correct answer from the multiple choice options provided.

    Copyright:

    © All Rights Reserved
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    Download as pdf or txt
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    Class : C4 (C Batch) Subject : Mathematics

    WORKSHEET - III
    1. 4 (sin4 30° + cos4 60°) – 3 (cos2 45° – sin2 90°) = [ ]
    a) 1 b) 2 c) 3 d) 4

    tan 45  tan 30


    2.  [ ]
    1  tan 45 tan 30
    a) 2  3 b) 3  2 c) 2  3 d) 3  2

    1  sin 60
    3.  [ ]
    cos 60
    a) 3  2 b) 2  3 c) 3  2 d) 2  3

    sin 45
    4.  [ ]
    1  2 cos 30
    3 1 2 2 3 1 2 2
    a) b) c) d)
    2 2 3 1 2 2 3 1

    1  sin 2 45
    5.  [ ]
    1  cos 2 45
    1
    a) – 1 b) 0 c) 1 d)
    2
    3
    6. cot2 30° + tan2 60° + sin2 45° + cosec2 30° = [ ]
    4
    76 83 77 79
    a) b) c) d)
    8 8 8 8

    1  sec2 45
    7.  [ ]
    1  cos 2 90
    a) 1 b) 2 c) 3 d) none of these
    8. sec 0° + sin 90° = [ ]
    a) sin2 45° b) sec 30° c) cosec 45° d) sec 60° tan 45°
    9. cot2 60° – cosec2 60° = [ ]
    a) 1 b) 0 c) 2 d) – 1

    1  cos 2 90
    10.  [ ]
    cot 90
    a) 0 b) 1 c) – 1 d) not defined
     1

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