Real number operations can be directly written answers, real number operation problems

1) Root number 18 times the circumference of 3, area 36

2) Party B - Party A = (10 + 11-2 * root number 110) - (11 + 12-2 * root number 132).

2 (root number 132 - root number 110) - 2

Compare the sizes of A and B (root number 132 - root number 110) with the size of 1.

Root number 132 - root number 110 square - 1 square = 132 + 110-1-2 * root number (110 * 132) = 241 - root number 58080

241 square = 58081 greater than 58080

Root number 132 - root number 110 square - 1 square is greater than 0

Root number 132 - root number 110) is greater than 1

Party B is greater than Party A and Party B is greater than A

3) Because the root number 1 (1) is less than the root number 3, less than the root number 4 (2), the root number 4 (2) is less than the root number 7, less than the root number 9 (3).

Therefore, the integer part of 3 under the root is 1, and the integer part of 7 under the root is 2, so a+b=3

Let the waist length be 5x, then the bottom edge length is 8x, and the bottom edge is bisected by the height, using the Pythagorean theorem.

5x)^2=(3√3)^2+(4x)^2

Find x= 3

Perimeter c = 5x + 5x + 8x = 18x = 18 3 area s = 1 2 * 8 3 * 3 3 = 36

aa+b=3

Addition rule: add two real numbers of the same sign, the sign does not change, and the absolute value is added; Add the two real numbers of the different sign to take the sign of the number with the larger absolute value, and subtract the smaller absolute value from the larger absolute value;

The law of subtraction: subtracting a number is equal to adding the opposite of the number;

Multiplication rule: multiply two real numbers, the product of the same sign is positive, the product of the different sign is negative, and multiply the absolute value.

The law of division: dividing by a number is equal to multiplying by the reciprocal of that number.

The volume of a cylinder is 27 square centimeters, and the diameter of the bottom circle is equal to the height of the cylinder, find what is the radius of the bottom surface of this cylinder.

h³/4=27π

h=base radius=h2=

The two points a and b on the number line represent the root number 3 and the root number 3-1 of the real number, respectively, so the distance between the two points a and b is 1

If |a-1|+ root number b-2 = 0, then a to the power b = 1 = 1 negative root number one has nine-sixteenths -5 4

Root number, root number. Half-root number eighth-2-8

Root number 1 9/25 4 5

That is, (x+y-1) 2+sqrt(2x-y+4)=0, which is equivalent to x+y-1 0

2x-y+4＝0

Get x=-1y=2 so.

The answer is yes. The sqrt played here is the open root number.

2 is the square of the expression.

lz first question.

Is it 3 or 1 3

The third question is 2 or 1 2.

I don't understand you.

I'll think it's 3 and 2.

Solution:1Original = 1 3-|-2+3/2|+12.Original = 2 3- 3

3.Original = 1 4-1+1+3

[n+n(n 2-1)]=n [n (n 2-1)](n 1).

You can simplify the differentiation, and it is estimated that you are not right by the formula.

Just remember a few 5=, 3=, 2=.

For example, 8- 5=2 2- 5=2*. The others and so on.

(1) Root number 10 + pi) ==

2) (4) x 7+2 6 (the result retains three significant figures) = (-4) ==

I hope the landlord can adopt it! Thank you!

（1）（2）.—

Just press the computer and you'll know

Re-questioning:

1) Calculation. 1 cos(atan(root(99)))2(2) calculation.

141 1232 * 5+6 * root number (14)).

( 5 — 2/5 ) 5 — 3 and 1/2 = 5-2- 3 and 1/2 = -1 2