A small proportion (1-2 per cent) of the pancreas is made up of other types of cells called islets of Langerhans. These cells sit in tiny groups, like small islands, scattered throughout the tissue of the pancreas. The islets of Langerhans contain alpha cells which secrete glucagon and beta cells which secrete insulin.
Basically, finding the n-th root of a (positive) number is the opposite of raising the number to the power n, so they effectively cancel each other out. These 4 expressions have the same value: `root(n)(a^n)=(root(n)a)^n``=root(n)((a^n))=a`.The 2nd item in the equality above means: take the n-th root first, then raise the result to the power n . The 3rd item means: raise a to the power n then find the n-th root of the result. Both steps lead back to the a that we started with.For the simple case where `n = 2`, the following 4 expressions all have the same value: `sqrt(a^2)=(sqrt(a))^2``=sqrt((a^2))=a`.aise a to the power n then find the n-th root of the result. Both steps lead back to the a that we started with. For the simple case where `n = 2`, the following 4 expressions all have the same value: `sqrt(a^2)=(sqrt(a))^2``=sqrt((a^2))=a`.
The natural logarithm of x is the power to which e would have to be raised to equal x. For example, ln(7.5) is 2.0149..., because e2.0149... = 7.5. The natural log of e itself, ln(e), is 1, because e1 = e, while the natural logarithm of 1, ln(1), is 0, since e0 = 1.