Trigonometry and Programming Basics Quiz
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Questions and Answers

What is the output of the following program? print("Hello World"[:

SyntaxError

Simplify: $sin^2 x + cos^2 x = $

  • $tan^2 x$
  • 1 (correct)
  • 2 sin(x) cos(x)
  • None of these
  • Study Notes

    Trigonometric Identity

    • The equation ( \sin^2 x + \cos^2 x = 1 ) represents a fundamental Pythagorean identity in trigonometry.
    • This identity holds true for all angles ( x ) and is widely used in various mathematical applications.

    Programming Syntax

    • The code snippet print("Hello World"[[: represents an incomplete slice operation in Python, leading to a syntax error.
    • Proper string slicing in Python requires specifying both start and end indices, hence the absence of a complete syntax would cause the program to fail.

    Options for Question 1

    • None of these: Incorrect; the correct answer is a well-established identity.
    • 1: This is the correct simplification of ( \sin^2 x + \cos^2 x ).
    • 2 sin(x) cos(x): This expression equals ( \sin(2x) ) but is not related to the given equation.
    • ( \tan^2 x ): Incorrect; this does not relate to the Pythagorean identity.

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    Description

    Test your understanding of basic trigonometric identities and simple programming concepts. Evaluate your skills in simplifying trigonometric expressions and identifying errors in code snippets.

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