Trigonometry Worksheets

C b ad 32 metres the angle of elevation of t from a

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Unformatted text preview: 630 – 540 – 450 – 360 – 270 – 180 – 90 90 – 180 270 360 450 540 630 720 90 180 270 360 450 540 630 1 1 The cosine curve – 720 – 630 – 540 – 450 – 360 – 270 – 180 – 90 – sine x If cosine A = cosine x If sine A = 1 then A º = 180 n + (–1) n x º then Aº = 360n ± x º 1. Give the sine values of each of these angles 60º 120º 420º 480º 780º then write down the next two angles in the sequence. 2. Give the cosine values of each of these angles 50º 310º 410º 670º 770º then write down the next two angles in the sequence. 3. Give the sine values of each of these angles 30º 150º 210º 330º 390º 510º 570º then write down the next two angles in the sequence. 4. Give the cosine values of each of these angles 70º 110º 250º 290º 430º 470º 610º then write down the next two angles in the sequence. 5. Give the three smallest possible positive angles having these sine values (i) 1 (ii) 0.734 (iii) –0.212 6. Give the three smallest possible positive angles having these cosine values (i) 1 (ii) 0.406 (iii) –0.653 7. Give the...
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This document was uploaded on 03/01/2014.

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