When 2y-x = 5, 5 (x-2y) 2-3 (- x + 2Y) - 60=______ ．

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• 1. Given - x + 2Y = 5, then the value of 5 (x-2y) 2-3 (x-2y) - 60 is______ ．
• 2. When 2y-x = 5, (x-2y) & sup2; - 3 (- x + 2Y) + 60
• 3. If x-2y = 5, then the value of 5 (2y-x) ^ 2-3 (2y-x) - 60 is
• 4. Given - x + 2Y = 5, then the value of 5 (x-2y) * 2-3 (x-2y) - 60 is_
• 5. Given - x + 2Y = 5, then the value of 5 (x-2y) ∧ 2-3 (x-2y) - 60 is () a Given - x + 2Y = 5, then the value of 5 (x-2y) ∧ 2-3 (x-2y) - 60 is () A-17 B-7 C-3 d 7
• 6. Expand the function f (x) = cosx into a power series of X. thank you
• 7. Finding the (x + π / 3) power series of function cosx
• 8. A = [cosx - SiNx; SiNx cosx], find the nth power of A
• 9. How LNX develops into power series
• 10. Finding Taylor series of F (x) = LNX at x = 2 How to find the convergence domain How to calculate the open and closed interval of convergence domain
• 11. Given - x + 2Y = 5, then the value of 5 (x-2y & # 178;) - 3 (x-2y) - 60
• 12. If the absolute value of (X-5) ² + 2Y + 1 = 0, then x-2y=
• 13. Let X of G (x) = e, X ≤ 0 LNX, x > 0, then G (g (1 / 2)) is equal to?
• 14. It is known that f (x) = ax LNX, X belongs to (0, e], G (x) = LNX / x, where e is a natural number and a belongs to R (1) The monotonicity and extremum of a = 1, f (x) are discussed (2) Verification: under the condition of (1), f (x) > G (x) + 1 / 2 (3) If there is a real number a, the minimum value of F (x) is 3. If there is, the value of a can be obtained. If not, the reason is given
• 15. If G (x) = e ^ x, X ≤ 0 = LNX, x > 0, then G (g (1 / 2))=
• 16. If f (x) = one in X, X
• 17. Mathematics complete square formula 1. Known (x + y ^ 2) = 16, (X-Y) ^ 2 = 4, find x ^ 2 + XY + y ^ 2 2.（x-2y+3z）^2 3.[(2a+b)(2a-b)]^2 4. The side length of a square is a cm. Reduce the side length of the square by 6cm and increase it by 6cm respectively. What is the sum of the areas of the three squares?
• 18. If a = negative, B is not equal to 0, and N is a positive integer, then the following conclusion is correct: the 2nth power of a and the 2nth power of B are opposite to each other B: The N + 1 power of a is opposite to the N + 1 power of B. C: the n power of a is opposite to the n power of B. D: the 2n + 1 power of a is opposite to the 2n + 1 power of B Which one? Why?
• 19. The coefficient containing x ^ 3 in polynomial (1-2x) ^ 5 (2 + x) is? The answer is - 120, but I seem to have - 40,
• 20. If the m-th power of polynomial X and the 2-th power + (M + n) x + 1 of polynomial X are cubic quaternions and the coefficient of the first term is - 1, then M =?, n =?