Solving trigonometric equation

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SUMMARY

The discussion focuses on solving the trigonometric equation involving the sine function, specifically deriving the angle C from the equation \(\sin C = \frac{2}{\sqrt{29}}\). The key conclusion is that the expression \(C = \frac{1}{2} \sin^{-1} \left(\frac{20}{29}\right)\) is equivalent to the identity \(\sin 2C = \frac{20}{29}\). This relationship is crucial for understanding the transformation between sine and its inverse function in trigonometric identities.

PREREQUISITES
  • Understanding of trigonometric identities
  • Familiarity with inverse trigonometric functions
  • Knowledge of the sine function and its properties
  • Basic algebraic manipulation skills
NEXT STEPS
  • Study the derivation of trigonometric identities
  • Learn about the properties of inverse sine functions
  • Explore the double angle formulas in trigonometry
  • Practice solving trigonometric equations with different identities
USEFUL FOR

Students studying trigonometry, educators teaching trigonometric identities, and anyone looking to enhance their understanding of sine functions and their applications in solving equations.

thereddevils
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This is part of the identity proving question .

from [tex]\sin C=\frac{2}{\sqrt{29}}[/tex] , how can i reach [tex]C=\frac{1}{2}\sin^{-1} (\frac{20}{29})[/tex] ?
 
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Hi thereddevils! :smile:

(have a square-root: √ and try using the X2 tag just above the Reply box :wink:)

Hint: C = 1/2 sin-1 20/29 is the same as sin2C = 20/29 :wink:
 


tiny-tim said:
Hi thereddevils! :smile:

(have a square-root: √ and try using the X2 tag just above the Reply box :wink:)

Hint: C = 1/2 sin-1 20/29 is the same as sin2C = 20/29 :wink:


got it thanks !
 

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