Given that a square plus b square equals 25 and a × B equals 12, find the square of (1) a + B and (2) a-b

RELATED INFORMATIONS

• 1. The second power of 2-0 is equal to 4, equal to 1 * 4, the second power of 4-2 is equal to 12, equal to 3 * 4, the second power of 6-4 is equal to 20, equal to 5 * 4 What rule do you find? Write numbers in letters
• 2. 1+2+3+4+5+…… +100 = how much
• 3. 1+2+3+4+5+6…… How much does it add up to 10000? The result is calculated
• 4. In diamond ABCD, the angle B is equal to the angle EAF is equal to 60 degrees, the angle Bae is equal to 25 degrees, and the degree of the angle CEF is calculated
• 5. In the past, it took 8 hours for a workshop to produce 1200 parts. After the technical innovation, it took only 6 hours to complete the task, and the work efficiency increased by several percent
• 6. The perimeter of a rectangle is 48 decimeters, and its length is twice its width. What's the area of a rectangle
• 7. It takes 65 seconds for a train to cross the 990 meter bridge. It takes only 15 seconds for a train to pass through a pole at the same speed. What's the speed of the train What is its total length
• 8. As shown in the figure, in ladder ABCD, ad ‖ BC, e is the midpoint of CD, AE ⊥ be, ab = AD + BC
• 9. The price of taxi in a city is: 5 yuan for less than 3 km (including 3 km), 1 km for more than 3 km (1 km for less than 1 km) It costs 1.2 yuan. Xiaoxiao takes a taxi from home to the gymnasium for 7.3 kilometers. How much does Xiaoxiao pay?
• 10. Pull the rectangle nailed with wooden strips into a parallelogram, its area () A. Bigger B. smaller C. unchanged
• 11. How much plus 0.25 divided by 3.5 times 4.8 divided by 0.8 equals 1.2
• 12. What is (- 0.5) + 3 and 1 / 4 + 2.75 + (- 5 and 1 / 2)?
• 13. What is 3 + 1-5 + 0-0 + 4
• 14. 3, if the sum of the first n terms of the equal ratio sequence {an} is Sn = 3 ^ n + A, then a is an=sn-sn-1=2x3 n-1 ,a1=s1 ,2=3+a ,a=1 The answer is - 1 or 1,
• 15. What is the formula of the sum of the first n terms of an equal ratio sequence?
• 16. By using the first n terms of the equal ratio sequence and the formula, it is proved that: a^n+a^n-1*b+a^n-2*b^2+… +b^n=a^n+1-b^n+1/a-b
• 17. The formula of finding the sum of the first n terms in the equal ratio sequence
• 18. Calculation: (- 4 square + 6) × (1 / 5-3 / 2)
• 19. The square of 1 - the square of 2 + the square of 3 - the square of 4 + the square of 5 - the square of 6 + +The square of 99
• 20. Calculation: 12-22 + 32-42 + 52-62 + +20012-20022+20032-20042．______