Решить
a/√(1-b2/a2)-b√(a2/b2)-1+b/√(b(a2/b2-1))

On what country did the colonies in america declare a war? - the colonies in america declare a war on great britain. what country won the revolutionary war? when was it? - america won the revolutionary war in 1783. what problem did the young country face after the war? - they had a problem: they needed one strong national government. where was the us constitution written? who wrote it? - the us constitution was written in 1787 by the representatives of the us states. why can the us government be compared with a tree? - the us government like a tree with a strong trunk and the three branches. the trunk is the people. it holds up the tree: without the support of people there can be no government.  what is the us congress? how is it divided? how many people does each state send to the senate? does the number of senators depend on the size of the state? - the us congress is a meeting of representatives fromm all states. it is divided into two parts, the senate and the house of representatives. each state sends two people to the senate. the number of senators doesn't depend on the size of the state. do all states send people to the house of representatives? what does the number of people depend on? - yes, all states send people to the house of representatives. the number of the congressmen from each state depends on the number of people who live in the state.

Если: влял на 12 деталии в час больше второго. сколько деталии изготовил каждый рабочии, то  первый - х за час, второй -х+12, уравнение:   5х=4(х+12), отсюда х=48(думаю, сами решите) , 48х5=240, 60х4=240. вот  5х=4(х+12)  5х=4х+48  5х-4х=48  х=48