Question

Find the sine, cosine and tangent of A and find the sine, cosine and tangent of B

Answer 1

sinA: 11/11.18 or 0.9839

cosA: 9/11.18 or 0.8050

tanA: 11/9 or 1.2222

sinB: cosA

cosB: sinA

tanB: 9/11 or 0.8182

Answer 2

Check the picture below.

`\sin(a)=\cfrac{\stackrel{opposite}{11}}{\underset{hypotenuse}{11.18}}\hspace{5em} \cos(a )=\cfrac{\stackrel{adjacent}{2}}{\underset{hypotenuse}{11.18}} \\\\\\ \tan(a )=\cfrac{\stackrel{opposite}{11}}{\underset{adjacent}{2}}\hspace{5em}\tan(b )=\cfrac{\stackrel{opposite}{2}}{\underset{adjacent}{11}}`