Question

2 арксин (син a/2) =?

Answer 1

Ответ: a

Объяснение:

$arcsin(sin(x))=x$

$2\cdot arcsin(sin(\frac{a}{2}))=2 \cdot \frac{a}{2}=a$

Answer 2

To find the value of 2 arcsin(sin(a/2)), we can use the trigonometric identity:

arcsin(sin(x)) = x for -π/2 ≤ x ≤ π/2

So, in our case, we have:

2 arcsin(sin(a/2)) = 2 * (a/2) = a

Therefore, the value of 2 arcsin(sin(a/2)) is simply "a."