How can i evaluate trig functions?

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SUMMARY

The discussion focuses on evaluating trigonometric functions using a standard calculator, specifically for the function d(t) = 0.5cos(2t). To find the value of d(t) for a specific t, users should multiply t by 2, press the [COS] button, and then multiply the result by 0.5. The conversation clarifies that the user is looking to compute d(t) rather than solve for t, which requires a different approach and possibly a more advanced calculator.

PREREQUISITES
  • Understanding of trigonometric functions, specifically cosine.
  • Familiarity with basic calculator operations, including multiplication and function buttons.
  • Knowledge of how to input values into a calculator for evaluation.
  • Basic algebra skills to manipulate equations.
NEXT STEPS
  • Learn how to evaluate trigonometric functions using a scientific calculator.
  • Research the properties of the cosine function and its transformations.
  • Explore advanced calculators that can solve equations involving trigonometric functions.
  • Study the unit circle and its application in evaluating trigonometric values.
USEFUL FOR

Students learning trigonometry, educators teaching mathematical concepts, and anyone seeking to improve their skills in evaluating trigonometric functions with calculators.

preet
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however stupid it sounds, I don't know how to evaluate trig functions with my calculator... ex.

d(t) =0.5cos2t

how do i solve for t (lets say t is 2). Thanks in advance.
 
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I'm not sure what you are asking. It would appear that you don't want to "solve" for t but you want to determine the values of d(t) for various values of t.

If that's the case, enter a value of t into your calculator, mutiply it by 2, press the [COS] button and multiply the result by 0.5. That will give you the value of d for the specifice value of t you entered. Repeat for different values of t as often as needed.

If you actually meant "solve for t" then you have a real problem with your standard calculator!
 
what calculator have u got??
 

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