Diameter 12 meters, 5 meters hemispherical, arc side length, quick

Diameter 12 meters, 5 meters hemispherical, arc side length, quick

Radius 6M
The distance from the center of the ball to the arc surface is 6-1.5 = 4.5m
So the radius of the curved surface is 3 / 2 times of the root sign 7
So the root of the arc side is three times 7 π

The square of (a + 3) + root (B-1 / 3) = 0, find B / A

According to the meaning of the title, a + 3 = 0, B-1 / 3 = 0
So a = - 3, B = 1
So B / a = - 1 / 3

It is known that the three sides of △ ABC are a, B, C respectively, which can be reduced to a-b-c + b-c-a + c-a-d

The three sides of ∵ △ ABC are a, B, C, respectively,
∴ a＜b+c,b＜c+a,c＜a+b
∴a-b-c＜0,b-c-a＜0,c-a-b＜0
Then a-b-c + b-c-a + C-A-B
＝[-(a-b-c)]+[-(b-c-a)]+[-(c-a-b)]
=b+c-a+c+a-b+a+b-c
=a+b+c

It is known that ABC is the length of three sides of triangle, and a-b-c - b-a-c - c-b-a is simplified

Because a, B, C are the lengths of the three sides of a triangle
So a < B + C, B < A + C, C < B + a
Results: a-b-c < 0, b-a-c < 0, c-b-a < 0
So a-b-c - b-a-c - c-b-a
=-(a-b-c)+(b-a-c)+(c-b-a)
=-a+b+c+b-a-c+c-b-a
=b+c-3a

Try to simplify a + C - A + B + C - B-A + B + C
c＜b＜0＜a

There are three types of cases
When a 〉 = - B-C, then the original formula = a + C - (a + B + C) + (B-A) - (B + C) = - a-2c
When - B-C > a 〉 - C, then the original formula = a + C + (a + B + C) + (B-A) - (B + C) = 2A + B + C
When a

Simplify a + B - C-B

When a + B = C-D = 0, a + B - C-B = 0
When a + b > 0 and C-D > 0, a + B - C-B = a + B - (C-D) = a + B-C + D
When a + B

If - 2 ≥ a ≥ 0, simplify a + 2 + A-2

∵-2

When m

M - √ M &
=|m-(-m)|
=|2m|
=-2m

How to do the second radical addition and subtraction method when it comes to fractions? For example, the root number 24 minus three times of the root number three thirds plus two times of the root number two and two times of the root number three?

Formula. For example, 3-2 radical 2 = 1-2 radical 2 + 2 = (radical 2-1) * (radical 2-1). I don't understand your question. Can you type it again?

Is 4 / 2 a fraction? Is 3 / 2 a fraction?

Four out of two is the fraction, not the simplest fraction, not the real fraction!
The root sign 3 / 2 is also a fraction