| 1 | 1 | 1 | ||||
f' = | + | * | ||||
| √1−x2 | √1−√1−x2 | 2 * √1−x2 |
f(x) = asin(x) + asin(√1−x2)
f(x) = u + v
u = asin(x)
v = asin(√1−x2) = asin(z)
z = √k
k = 1 − x2
| 1 | ||
u' = | ||
| √1−x2 |
| 1 | ||
v' = (asin(z))' = | * z'
| |
| √1−z2 |
| 1 | ||
z' = √k = | * k'
| |
| 2√k |
| 1 | 1 | |||
f'(x) = u' + v' = u' + | * | * k' =
| ||
| √1−z2 | 2√k |
| 1 | 1 | 1 | ||||
= | + | * | * (−2x) = | |||
| √1−x2 | √(1−√(1−(1−x2))) | 2√1−x2 |