CONCEPT PREVIEW Match each trigonometric function value or angle ...

Question

CONCEPT PREVIEW Match each trigonometric function value or angle in Column I with its appropriate approximation in Column II.

I                                  II.
1.                               A. 88.09084757°
2.                               B. 63.25631605°
3. tan 16°                   C. 1.909152433°
4.                               D. 17.45760312°
5.                               E. 0.2867453858
6.                               F. 1.962610506
7.                               G. 14.47751219°
8.                               H. 1.015426612
9.                                I. 1.051462224
10.                             J. 0.9925461516

Accepted Answer

Welcome back everyone. In this problem, we want to evaluate the trigonometric expression of the tangent of degrees using a calculator. And we want to approximate our answer to three decimal places. For our answer choices A is 0.626. B is 0.342 C is 0.384. And the D is negative 1.527. Now, we want to find a tangent of 21 degrees. And on our calculator, we know where our tangent function is. So if we find the tangent of 21 degrees using the calculator, also ensuring that your calculator is in degree mode, it's very important. Then the tangent of 21 gives us the value 0. 86403504. And for some calculators, it continues on. But remember we are approximating our answer to three decimal places. When we go to our third decimal place, the digit beside it is greater than five. So we round up. So that means the tangent of 21 degrees equals 0.384 to three decimal places. When we look on our answer choices that would have been answer choice. C thanks for watching everyone. I hope this video helped.

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