Sin 15 Degrees
Can you find the correct value of 15 degrees? 3
For example, due to the difference in ID and angle:
Sin (15) = Sin (4530) = Sin (45) cos (30) cos (45) Sin (30)
= š2 / 2 * š3 / 2 ˆš2 / 2 * 1/2
= (à Ã6à ˆš2) / 4
The true value of sin 15
Sin 15 degrees
Use the fact that sin 30 degrees = 1/2. 30 degrees = 15 degrees + 15 degrees. Sin (a + b) = sin a cos b + cos a sin b. a = b = 15 degrees. Then 1/2 = 2 sin 15 cos 15 then sin 15 cos 15 = 1/4. So sin 2 15 cos 2 15 = 1/16. But cos 2x = 1sin 2x, so sin 2 15sin 4 15 = 1/16. Call without 2 15 U. So uu 2 = 1/16. u 2 + u1 / 16 = 0. The solution of this square gives u = 1/2 + o (SQR 3) / 2. The only positive solution is u = 1/2 + (SQR 3) / 2. The second sin will value Ammar for 15. So sin 15 = SQR (1/2 + (SQR 3) / 2). It's better to see my work.
Use special angles. These are 0, 30, 45, 60, 90.
Sin 15 = Sin (4530) = Sin 45 cos 30 Sin 30 cos 45
Simplify these angles ((square 2) / 2 * (square 3) / 2 1/2 * (square 2) / 2)
Make it easy and you will get your answer. Similar terms.
Sin (15)
= Sin (4530)
= sin45 cos30 cos45 sin30
= (Square (2) / 2) (square (3) / 2) (square (2) / 2) (1/2)
= Square root (2) (square root (3) 1) / 4
Sin 15 Degrees
Sin 15 Degrees
Sin (15 degrees) = Sin (45 degrees 30 degrees) = Sin (45 degrees) * cos (30 degrees) Sin (30 degrees) * cos (45 degrees) =
Enter 15 x 2 sin action sin in your scientific calculator and you will find sin in 15 degree radiance.
Use calculator ...
