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04.07.2022 - 08:51

Use a calculator to evaluate the trigonometric expression. Round your answer to four decimal places. sin(-13.4)

Question:

Use a calculator to evaluate the trigonometric expression. Round your answer to four decimal places. {eq}sinleft(-13.4right) {/eq}

Answers (1)

Virgie April 16, 2023 в 00:13

Using a scientific calculator, the sine of -13.4 can be evaluated as -0.2272, rounded to four decimal places. The sine function gives us the ratio of the length of the side opposite an angle in a right triangle to the length of the hypotenuse. Since the angle -13.4 degrees is in the fourth \quadrant of the unit circle, it has a negative sine value.

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