Is there a primitive function for arcsinx divided by (the square of SiNx)

Is there a primitive function for arcsinx divided by (the square of SiNx)

Yes, all elementary functions have primitive functions, but they are not necessarily elementary functions

Given that the area of the shadow part in the figure is 40 square centimeters, how many square centimeters is the area of the ring? (& nbsp; π = 3.14)

Let the radius of the big circle be r, and the radius of the small circle be r, then the side length of the big square is r, and the side length of the small square is r, because the area of the shadow part = r2-r2 = 40 square centimeter, so the area of the ring = the area of the big circle - the area of the circle: π (r2-r2) = 3.14 × 40 = 125.6 (square centimeter) a: the area of the ring is 125.6 square centimeter

If X & sup2; + Y & sup2; - 10Y + 34 = 0, then x + y=_____ .
Well Wrong title
The correction is as follows:
The correct title should be: X & sup2; + Y & sup2; - 6x + 10Y + 34 = 0, then the value of X + y is ()

(x-3)^2+(y+5)^2=0
x-3=0,y+5=0
x=3,y=-5
x+y=-2

The derivation of parametric equation x = acost y = bsint why DX -- = - asint dy

X is derived from t
dx=-asint dt
Y is derived from t
dy=bcost dt
dx/dy=-asint dt/bcost dt=-a/b*tant
dx=-a/b*tant dy

Cut the cross shaped paperboard (as shown in the picture) composed of five small squares, so that the pieces can be assembled into a large square. At least a few cuts are needed? （　　）
A. 1 knife B. 2 knives C. 3 knives D. 4 knives

As shown in the figure: the cross shaped paperboard composed of five small squares (as shown in the figure) is cut, so that the pieces cut can be put together into a large square, with at least four cuts

In the corridor between the school and the teaching building, there are 16 cylindrical concrete columns with a height of 6 meters and a bottom diameter of 6 decimeters. Paint these columns, and the area of the paint surface is______ Square meters. If you can paint 4 square meters per kilogram of paint, you need a total of paint______ Kilogram

6 decimeters = 0.6 meters, the sum of the areas to be painted is: 3.14 × 0.6 × 6 × 16, = 11.304 × 16, = 180.864 (square meters), 180.864 △ 4 = 45.216 (kg). A: the area of the paint surface is 180.864 square meters, a total of 45.216 kg of paint is required

Connect the following expressions with operation symbols. (can add parentheses) please
1（ ）2（ ）3（ ）4（ ）5=10
1（ ）2（ ）3（ ）4（ ）5=10
1（ ）2（ ）3（ ）4（ ）5=10

1^23+4+5=10,12-3-4+5=10,(1+2+3-4)*5=10,1+2+3*4-5=10,(1+(2-3)^4)*5=10
1+2*(3+4)-5=10,(1+2)*3-4+5=10,(1+2)/3+4+5=10,1+2^3-4+5=10,1-(2-3)*4+5=10
1-(2-3)*(4+5)=10,(1*2*3-4)*5=10,1*(2*3-4)*5=10,1*2^3/4*5=10,(1*2)^3/4*5=10
1/2^(3-4)*5=10,(1/2)^(3-4)*5=10,1^(2+3)+4+5=10,1^(2-3)+4+5=10,(1^2-3+4)*5=10
1^(2*3)+4+5=10,1^(2/3)+4+5=10,1^2^3+4+5=10,1^(2^3)+4+5=10

Let the partial derivative of function f (x, y) exist at (x0, Y0), then f (x, y) is continuous at (x0, Y0)

It should be right, because if derivative exists, function must be continuous, but if function is continuous, derivative does not exist

A cuboid container, with a bottom area of 12 square decimeters, contains 8 decimeters of water. First put a glass block with a volume of 18 cubic decimeters. The glass block is completely empty. How many decimeters does the water surface increase?

18 / 12 = 1.5 decimeters

How to add, subtract, multiply and divide 12 2 into 1993?

2222 - 222 - 2*2*2 + 2/2 = 1993
Two thousand two hundred twenty-two minus two hundred twenty-two minus two times two plus two divided by two equals 1993