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Pearson Algebra 1 Common Core, 2011
PA
Pearson Algebra 1 Common Core, 2011 View details
6. Trigonometric Ratios
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Exercise 20 Page 649

Use a calculator and remember to choose degrees mode.

0.2126

Practice makes perfect

We can use a calculator to evaluate a trigonometric ratio using the TAN button. Be sure to always check that your calculator is in the correct mode. In this case, we need degrees.

Now we can round the result to the nearest ten-thousandth.

tan 12^(∘)=0.21255656...
RoundSigDig

Round to 4 significant digit(s)

tan 12^(∘)≈ 0.2126
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arrow_right Practice and Problem-Solving Exercises p.649-651
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Practice and Problem-Solving Exercises 20 (Page 649)
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