Find the value of each trigonometric ratio using a calculator. 1 sin 12 ° 2 cos 14 ° 3 cos 52 ° 4 cos 24 ° 5 tan 51 ° 6 cos 35 ° Find the value of each trigonometric ratio. 7 cos C 8 cos A 9 cos C 10 tan Z 11 tan A 12 cos X
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Gauthmathier9814
Grade 12 · 2021-06-17
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Find the value of each trigonometric ratio using a calculator. 1) Find the value of each trigonometric ratio using a - Gauthmath 2) \cos 14^{\circ } 3) \cos 52^{\circ } 4) \cos 24^{\circ } 5) \tan 51^{\circ } 6) \cos 35^{\circ } Find the value of each trigonometric ratio. 7) \cos C 8) \cos A 9) \cos C 10) \tan Z 11) \tan \ A 12) \cos X
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7 Trigonometric ratios on your calculator
There are various different units in which an angle can be measured, degrees being one of the possibilities. Before using your calculator to find the values of the trigonometric ratios of angles measured in degrees, you need to ensure that it is set to use the correct units.
Always check that your calculator is using the correct system of angle measurement before using trigonometric ratios.
Your calculator is set to
use degrees if the display indicator
Figure 9 The degrees setting
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The top row of the screen contains the letter D (white text on black) in the centre, and the word ‘math’ towards the right end.
Figure 9 The degrees setting
To set your calculator to work in degrees, use the key sequence
To calculate the sine, cosine or tangent of an angle, press the
Activity 16 Trigonometric ratios on your calculator
You will notice from the answer to part (3) that the calculator displays the ratios of some angles as fractions, involving surds where needed, and not in decimal form.