Verify Your Answer | Quick and Easy Online Check - Up-00.com

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SUMMARY

The discussion focuses on verifying mathematical answers, specifically addressing errors in a provided solution. Key mistakes include incorrect multiplication of fractions, misinterpretation of trigonometric identities, and erroneous simplifications. The user is guided through specific lines of their work, highlighting the need for distinct multipliers for fractions and clarifying the relationships between sine and cosine functions. The corrections emphasize the importance of accurate mathematical operations in problem-solving.

PREREQUISITES
  • Understanding of trigonometric identities, specifically sine and cosine functions.
  • Familiarity with algebraic manipulation of fractions.
  • Knowledge of basic calculus concepts related to trigonometric functions.
  • Ability to interpret and analyze mathematical expressions accurately.
NEXT STEPS
  • Review trigonometric identities and their applications in problem-solving.
  • Practice algebraic manipulation of fractions with different multipliers.
  • Explore common mistakes in trigonometric simplifications and how to avoid them.
  • Learn about the implications of incorrect assumptions in mathematical proofs.
USEFUL FOR

Students, educators, and anyone involved in mathematics who seeks to improve their problem-solving accuracy and understanding of trigonometric functions.

r-soy
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Hi all


i want to check my answer if possible

http://www.up-00.com/h1files/IEk98637.jpg
 
Last edited by a moderator:
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Your work is incorrect, with mistakes on almost every line.
Line 2: You multiplied both fractions by the same expression. You need to multiply each fraction by something different.
Line 3: cosx - cosx = 0 not 2cosx.
Line 5: cosx != 1 - sinx
Line 6: sin^2(x) - 1 != -(1 + sin^2(x))
Line 7: -(1 + sin^2(x)) != sin^2(x) - 1
Line 8: sin^2(x) - 1 != sinx
 
thanks very much
 

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