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Pi = perimeter / diameter,
Pi = perimeter / diameter, for
What is the meaning of PI (circumference / diameter)? What is the meaning of PI (circumference / diameter)? Why can we find the area of an arbitrary circle by using (circumference / diameter) * radius ^ 2?
Connecting the center of the circle and the points on the circumference, the circle is divided into several narrow triangles
When the number of triangles tends to infinity, the sum of triangle areas is the area of circle
Half of the perimeter and diameter
The one upstairs is not right
This idea has existed since ancient times
Archimedes probably came up with it
The Pi of a large circle is equal to that of a small circle, right
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The ratio of circumference to 200 decimal places: 3.1415926535 8979323846 2643383279 5028841971 6939937510 58209744944 5923078164 0628620899 8628034825 3421170679 8214808651 3282306647 0938446095 5058223172 5359408128 48111745028
PI 100 places after decimal point 3.1415926 ?
π = 3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 5923078164 06286 20899 86280 34825 34211 70679 (top 100) 82148 08651 32823 06647 09384 46095 5058223172 53594 08128 4811
What is the 200 places after the decimal point of Pi
3.141592653589793238 462643383279 50288419716939937510 58209749445923078164 06286208998628034825 34211706798214808651 32823066470938446095 50582231725359408128 48111745028410270193 85211055596446229489 5493038196
I've counted it for you. I'm quite sure that the PI is 6
Ask for bonus points!
What is three times nine, nine times nine I'm sorry. I didn't mean it
3 times 9 = 27
9 times 9 = 81
Since the establishment of the school, it is equal to 180. When should it be equal to 3.1415926... When should it be equal to 180
π = 3.1415926... It doesn't change. It's a constant
180 ° is the angle
That's what I mean when I say π = 180
π rad=180°
Radian (RAD) is also a measure of angle
1 rad is about 57 ° and π rad (or 3.1415926 RAD) is just 180 ° in diameter
100 times 2 / 3 times 3 / 4. What is 49 times 50 100 times 2 / 3 times 3 / 4 times 4 / 5. What is 49 times 50 times
100 times 2 / 3 times 3 / 4 times 4 / 5. 49 times 50 = 100 × 2 △ 50 = 4
As early as 1500 years ago, Chinese Mathematicians () calculated the PI between 3.1415926 and 3.1415927
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RELATED INFORMATIONS
- 1. What is Pi? Which mathematician calculated the value of PI between 3.1415926 and 3.1415927 Write two quantitative relationships based on 55 percent of the total amount of fertilizer that has been transported away It takes 20 days for a project to be completed by team a and 12 days for team B to do it alone. How many days does it take for the two teams to work together
- 2. PI (accurate to 50 bits)
- 3. -Is π (PI) a negative number? (now I'm confused, the teacher gives an answer and analyzes the last answer, two on the Internet.),
- 4. PI represents () A. Ratio of circumference to diameter B. Ratio of circumference to radius of a circle C. Ratio of diameter to circumference D. Ratio of radius to circumference
- 5. PI represents the multiple relationship of circle () and () with two decimal places reserved Yes, I'll take it. I'll add another 50
- 6. Let y = f (x) be a decreasing function if θ∈ [0, π] 2] When f (COS 2 θ + 2msin θ) + F (- 2m-2) > 0 is constant, find the value range of M
- 7. If the vector PQ = (4 / 3, - 2 / 3) Vector op × vector OQ=
- 8. Vector M = (2sinx, 1), n = (√ 3cosx, 2cos2x), function f (x) = mn-t. (1) if the equation f (x) = 0 has a solution on 0 < = x < = π / 2, find the range of T value; (2) In the triangle ABC, ABC is the opposite side of ABC respectively. When t in (1) is the maximum value and f (a) = - 1, B + C = 2, the minimum value of a is obtained
- 9. It is known that f (x) = (x ^ 2-5) / 2x, f (3 + 2Sin θ)
- 10. We know that the opposite sides of the inner angles a, B and C in the acute angle △ ABC are a, B, C, vector M = (2sinb, root 3), vector n = (2cos ^ 2B / 2-1, cos2b), and m ⊥ n, (1) find the size of B, (2) if B = 2, find the maximum area of △ ABC
- 11. Is the value of PI circular?
- 12. The known function f (x) = cos ^ 4-2sinxcosx-sinx ^ 4 (1) Write the monotone increasing interval of function f (x) (2) Find the equation 2F (x) + √ 3 = 0
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- 14. The monotone decreasing interval of the function y = sin (x + 4 / π) is a monotone increasing interval
- 15. The function y = cos (2x - π) 3) The monotone decreasing interval of is___ .
- 16. Given the function f (x) = (1 + 2sinxcosx) / SiNx + cosx, find the minimum positive period and maximum value of F (x)
- 17. What is the range of y = (sinx-2) (cosx-2)
- 18. The maximum and minimum values of y = SiNx + cosx 1 / Radix (1 + | sin 2x |)
- 19. Minimum positive period of function FX = sin (cosx)?
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