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Cos0°. Cos1°. Cos2°, Cos3° ......... Cos90° =? 

This question was previously asked in
NPCIL Assistant Grade-1 (HR/F&A/C&MM/Steno Grade-I) Official Paper-II (Held In: 2022)
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  1. 1
  2. 0
  3. 1/2
  4. √3/2

Answer (Detailed Solution Below)

Option 2 : 0
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Detailed Solution

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Given:

Cos0º. Cos1º. Cos2º, Cos3º ......... Cos90º = ?

Formula used:

Product of cosines from Cos0º to Cos90º

Calculation:

We know that Cos90º = 0

⇒ Product of any number with 0 is 0

⇒ Cos0º. Cos1º. Cos2º, Cos3º ......... Cos90º = 0

∴ The correct answer is option 2.

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Latest NPCIL Assistant Grade 1 Updates

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-> Nuclear Power Corporation of India Limited has published a comprehensive notification for the position of NPCIL Assistant Grade 1.

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-> Interested applicants can start submitting their online applications from 12 March 2025.

-> The application window will be closed on 1 April 2025. However the date of exam is yet to be notified.

-> Candidates can review the NPCIL Assistant Grade 1 Previous Year Papers, for better preparation!

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