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How does Geometer's Sketchpad make analytic expressions fractional? The analytical expressions are all in the form of decimals and cannot be converted into fractions And how to calculate the analytical expression of the vertical line in the line segment
I once did the question of converting decimal into fraction. You can look for it. But the principle is very simple. It is to multiply the decimal by the known denominator, and then use the text tool to make the decimal
Calculate the analytical expression of all lines, select the line, and then "measure" - "equation"
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- 1. All formulas of physics compulsory 1 and compulsory 2 in senior one should be comprehensive
- 2. 1. A and B measure the length of the same object with two scales. The result measured by a is 6.50dm, and that measured by B is 0.648m A. The graduation value of the scale used by two people is the same. B. The graduation value of the scale used by two people is different. C. one of the two results must be wrong D. A's reading is more accurate than B's 2. When measuring the length of an object with a smaller scale, the measured value is compared with the real value () A. The measured value is greater than the real value B. the measured value is less than the real value C. the measured value is equal to the real value D. it cannot be judged 3. When we ring the ancient bell, we will find that after stopping the impact on the bell, the bell's "lingering sound" does not stop. The main reason is () A. The echo of the bell B. the big clock is still vibrating C. the big clock stops vibrating D. people's hearing is prolonged 4. What's the reason why people can speak? What's the reason why people can hear? 5. When playing guitar, the finger moves back and forth on the string to change the pitch by changing (). This research method uses the () method
- 3. The acceleration of the car is 6m / S2 when the car is in emergency braking on a flat road. If the car has to stop within 2S, what is the maximum speed of the car? If the car has to stop within 1.5s, how much is the acceleration of the car during braking? (1) what are the implied conditions for a car to "stop" in a certain process?
- 4. The greater the initial velocity, the greater the acceleration and the longer the motion time of the object, then the formula v = V0 + at shows that the final velocity of the object must be greater. Is this sentence correct?
- 5. The ninth grade physics formula solution teacher teaches
- 6. It's better to be all inclusive
- 7. Some of them help me to find out all the calculation formulas and laws of physics in senior one,
- 8. All aspects of physics formula in senior one I hope you can help me
- 9. Finding all the formulas of physics in the first grade of Higher Education
- 10. Physical formula of senior one_ Finding the physical formula of grade one
- 11. Define the function in the interval (- L, l), and prove what the sum of odd function and even function is
- 12. The quadratic function f (x) satisfies that f (x + 2) = f (- x + 2), f (0) = 3, f (2) = 1. If there is a maximum value of 3 and a minimum value of 1 on [0, M], then the value range of m is () A. （0，+∞）B. [2，+∞）C. （0，2]D. [2，4]
- 13. There is a problem in probability and Statistics: let the density function of random variable X be f (x) = {3 / 8x ^ 2,0
- 14. Given that A1 = 1 in sequence an and point (an, an + 1) is on the image of function f (x) = x + 2, the general term formula is obtained
- 15. Solution of inequality X & sup2; - 4 × (absolute value of x) ＜ - 3
- 16. It is known that the circle x2 + Y2 + x-6y + M = 0 and the line x + 2y-3 = 0 intersect at different points P and Q. if op ⊥ OQ (o is the coordinate origin), then M=______ ．
- 17. Factorization (2x - y) - 4x + 2Y + 1
- 18. Triple integral calculation: calculate ∫ ∫ ∫ Ω √ X & # 178; + Y & # 178; + Z & # 178; * DV, where Ω: X & # 178; + Y & # 178; + Z & # 178; ≤ X
- 19. The sum of 987 minus 287 plus 135. Simple calculation method
- 20. Given the function f (x) = | x2-2 |, if f (a) ≥ f (b), and 0 ≤ a ≤ B, then the area bounded by the points (a, b) satisfying the condition is___ ．