Simplifying after applying quotient rule

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SUMMARY

The discussion focuses on simplifying expressions after applying the quotient rule in calculus. The user encountered a simplification issue resulting in the expression 6/4 [(-1 + tan(x) * sec(x) - (tan(x))^2]. The solution involves utilizing the identity sin²(x) + cos²(x) = 1 to further simplify the expression. The key takeaway is the importance of recognizing and applying trigonometric identities during simplification.

PREREQUISITES
  • Understanding of the quotient rule in calculus
  • Familiarity with trigonometric identities, specifically sin²(x) + cos²(x) = 1
  • Basic knowledge of tangent and secant functions
  • Ability to manipulate algebraic expressions
NEXT STEPS
  • Study the application of the quotient rule in calculus
  • Learn more about trigonometric identities and their proofs
  • Practice simplifying complex expressions using calculus techniques
  • Explore advanced calculus topics such as derivatives of trigonometric functions
USEFUL FOR

Students studying calculus, particularly those struggling with the quotient rule and trigonometric simplifications, as well as educators looking for examples to illustrate these concepts.

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Homework Statement



http://images.calcchat.com/solutionart/etf5e/03/c/se03c01047.png

Homework Equations


The Attempt at a Solution



What am i missing, because i get: 6/4 [(-1 + tanx*secx- (tanx)^2]
 
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Use that sin^2x+cos^x=1 in the third row .

ehild
 

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