If the side length of a diamond is 2, then the square sum of the two diagonals of the diamond is 2______ .
Let the length of two diagonals be a and B respectively, then (12a) 2 + (12b) 2 = 22, so A2 + B2 = 16
RELATED INFORMATIONS
- 1. If the side length of a diamond is 2, then the square sum of the two diagonals of the diamond is 2______ .
- 2. If the side length of a diamond is 2, then the square sum of the two diagonals of the diamond is 2______ .
- 3. How many times is the sum of the squares of the two diagonals of the diamond equal to the square of one side?
- 4. Proof: the area of the diamond is equal to half of the product of two diagonals
- 5. Verification: the area of diamond is equal to half of the diagonal product (two answers)
- 6. Proof: the area of the diamond is equal to half of the product of two diagonals
- 7. Is the area of a diamond equal to half of the product of diagonals?
- 8. What is the sum of squares of a sequence Simple and basic
- 9. The number sequence of senior two It is proved by mathematical induction that "when n belongs to n *, 11 ^ (n + 2) + 12 ^ (2n + 1) can be divisible by 133". When n = K + 1, the formula 11 ^ [(K + 1) + 2] + 12 ^ [2 (k + 1) + 1] can be transformed into________ .
- 10. How to prove this series inequality by mathematical induction It is known that an + 1 (refers to the N + 1st term) = an + (an ^ 2) / (n ^ 2), A1 = 1 / 3. To prove an > 1 / 2 - 1 / 4N. In addition, I will reduce the inequality to a more strict one, and it is better to prove an > 1 / 2 - 1 / 5N first. What is the reason?
- 11. If the side length of a diamond is 2, then the square sum of the two diagonals of the diamond is 2______ .
- 12. Prove that the sum of squares of four sides of a parallelogram is equal to the sum of squares of diagonals
- 13. Proof: the square sum of two diagonals of a parallelogram is equal to the square sum of four sides
- 14. Verification: the sum of squares of two diagonals of a parallelogram is equal to the sum of squares of four sides
- 15. Proof: the square sum of two diagonals of a parallelogram is equal to the square sum of four sides
- 16. Please give the proof of the relation theorem between the diagonal and the side of a parallelogram (the sum of the squares of the two diagonals of a parallelogram is equal to the sum of the squares of its four sides)
- 17. The proof that the sum of squares of diagonals of parallelogram is equal to the sum of squares of four sides RT I hope to be more detailed. If some trigonometric functions are involved, I also hope to explain them
- 18. Prove with vector method: the bisection sum of two diagonals of parallelogram is equal to twice of the square sum of two adjacent sides If the title, the best process Thank you! On the first floor Is the vector method that simple? ==|||I feel the process is so short No Of course, I think it's better to be short But the teacher won't let me But forget it Thank you for your quick answer ==|||I hate winter vacation homework Ah, ah
- 19. Prove with complex number: the sum of squares of parallelogram diagonal is equal to the sum of squares of four sides
- 20. It is proved that the sum of squares of the diagonals of a parallelogram is equal to the sum of squares of its sides