Calculate the power of 5 (the third power of a) 4-13 (the sixth power of a) 2

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• 1. Given that the point (1,1 / 3) is a point on the image of the function f (x) = a ^ x (a > 0 and a ≠ 1), the sum of the first n terms of the proportional sequence {an} is f (n) - C, and the sequence {BN} (BN) And ∵ SN-S (n-1) = √ Sn + √ s (n-1) ∴√Sn-√Sn-1=1 How is this converted
• 2. Given the function f (x) = x-sinx, the sequence {an} satisfies a (n + 1) = f (an) and 0 〈 A1 〈 1, prove 0 〈 an 〈 1 by mathematical induction
• 3. Given that the function f (x) = KX + B, f (1) = 2, f (1), f (2), f (4) is a comparative sequence, Let f (n) = log2 (an-2n), find the sequence I'm sorry. (I just found out, I'm sorry.) Find the first n terms and Sn of {an} of sequence
• 4. Given the function f (x) = (x ^ 2) / 2x-2, if the sequence {an} satisfies A1 = 4, a (n + 1) = f (an), we prove that when n > = 2, there is always an
• 5. In the sequence {an}, A1 = 2, an + 1 = an + ln (1 + 1n), then an = 1___ ．
• 6. Given that the first n terms and Sn of the sequence {an} satisfy log2 (Sn + 10) = n + 1, find its general term formula
• 7. Given that the first n terms and Sn of sequence {an} satisfy log2 (Sn + 1) = n + 1, the general term formula of sequence {an} is obtained
• 8. Decomposition factor - 18m (m-n) square - 12 (n-m) third power, please God Hurry up! It's a process!
• 9. The fourth power of x plus 4 factoring? How to do? Gods help
• 10. Given that the m-th power of a is 2, the n-th power of a is 5, and the p-th power of a is - 2, find the value of 5m + 2n-3p power of A
• 11. A simple method to calculate the square of (half a-b) - quarter (a + b) (a-b)
• 12. If the length of a rectangular farm is increased by 5 km, the area will increase by 15 square kilometers. If the width is increased by 6 km, the area will increase by 48 square kilometers?
• 13. The perimeter of a rectangular land is 120 meters, of which the width ratio is 13 meters. The area of this land is () square meters
• 14. (1) Someone uses one side (the wall is 7.5 meters long) and a 13 meter long bamboo fence as the other three sides to form a rectangular vegetable garden with an area of 20 square meters How many meters are the length and width of the square garden? (2) if the area in (1) is 23 square meters, can it be enclosed into a rectangular garden that meets the conditions? Why?
• 15. The roller of a roller is 10 meters long and 0.8 meters in diameter. If it rolls 20 times, how many meters will it advance? What is the area of the road surface?
• 16. The circle is 15 cm high and 10 cm in diameter. How many square meters is the area
• 17. A rectangular land, length increased by 4 meters, area increased by 80 square meters; width increased by 4 meters, area increased by 200 square meters?
• 18. The scale of the figure below is 1:200. According to the conditions, we can calculate the actual area of the figure, which is 10cm in length and 6cm in width
• 19. The length and width of a rectangle is the whole meter, and its area is 375 square meters. It is known that its width is 10 meters less than its length. How many meters is the sum of its length and width?
• 20. The rectangle is 80 meters long and 60 meters wide. Now the length and width are increased by 20 meters. How many square meters is the current area