Write the following rational numbers in the form of decimal fractions: a)
Let the number
a)
b)
Will this number be rational?
For what natural numbers
Prove that for
Prove that if
There are 4 weights and scales. How many loads that are different by weight can be accurately weighed using these weights, if
a) weights can be placed only on one side of the scales;
b) weights can be placed on both sides of the scales?
Will thought of a number: 1, 2 or 3. You can ask him only one question, to which he can answer “yes”, “no” or “I do not know”. Can you guess the number by asking just one question?
Prove the following formulae are true:
Derive from the theorem in question 61013 that