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starfish794
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How would I plug cos^2(30) into my scientific calculator to get the right answer? Thanks.
This means to enter the cosine of 30 degrees squared (cos^2(30)) into a scientific calculator to find the result.
The equation involves a trigonometric function (cosine) and its square, which cannot be easily solved with a basic calculator. A scientific calculator has the necessary functions and accuracy to solve this type of equation.
To enter cosine squared, you will need to use the "cos" button on your calculator, followed by the "^2" or "x^2" button to indicate the exponent. Then, enter the value 30 and press "=" or "enter" to get the result.
The result will be 0.75, as cos^2(30) is equal to 0.75 when solved using a scientific calculator in degree mode.
No, a regular calculator or phone's calculator may not have the necessary functions or accuracy to solve this equation correctly. It is best to use a scientific calculator for accurate results.