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Cos 0° + sec 60° = ______. - Mathematics

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Question

cos 0° + sec 60° = ______.

Options

  • 2

  • 3

  • 1

  • `1 1/2`

MCQ
Fill in the Blanks
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Solution

cos 0° + sec 60° = 3.

Explanation:

cos 0° = 1 because the cosine of zero is unity.

sec 60° = `1/cos 60° = 1/ (1/2) = 2`

1 + 2 = 3   ... [adding]

cos 0° + sec 60° = 3.

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Chapter 19: Trigonometry - MULTIPLE CHOICE QUESTIONS. [Page 238]

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B Nirmala Shastry Mathematics [English] Class 9 ICSE
Chapter 19 Trigonometry
MULTIPLE CHOICE QUESTIONS. | Q 10. | Page 238
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