Is 30 + 25 = x the equation?
yes
RELATED INFORMATIONS
- 1. 30 / x + 25 = 85 the process of solving equation
- 2. 2x^2+xy-6x^2+5x-4y+2
- 3. Given x + y = 6, xy = 4, then the value of X2Y + XY2 is______ .
- 4. Extremum of derivative Others say that "when we ask whether there is a straight point in the big derivative problem, we must take the number on both sides of the plant to test after finding out that the derivative is equal to zero." It seems so, but how to test it?
- 5. On the extremum of derivative The book says, "generally, the steps to find the maximum and minimum values of the function y = f (x) on [a, B} are as follows: 1. Find the extremum of function y = f (x) in (a, b); 2. Compare the extremum of function y = f (x) with the function values f (a) and f (b) at the breakpoint, where the largest one is the maximum and the smallest one is the minimum Question: is the extremum mentioned in 1 f '(x) = 0? Is the derivative value of the extremum point necessarily 0? Is it not the upper minimum and maximum value collectively referred to as extremum? Then the extremum has been found in 1, is it not the maximum and minimum value? Why should we calculate the second step?
- 6. Derivative extremum problem We know that f (x) = - A * x to the third power plus b * x to the second power. When x = 1, there is a maximum. 3. Find the value of a and B. the minimum of F (x)
- 7. Why say "the extreme point does not necessarily make the derivative zero?"
- 8. The third power of the square of (- a) divided by the square of (- a)
- 9. If Y1 = X-1, y2 = 2x + 1, and y1-3y2 = 0, then x=_____ ,y1+y2=_____ How to calculate
- 10. First simplify and then evaluate: when x = 3, y = 1.2, find the value of 2 times the square of x-3y
- 11. There are several equations 120% X-70% x = 30-25% x = 10
- 12. It is known that when x = - 1, the value of the algebraic formula ax & # 179; + BX + 6 is - 10. When x = 1, find the value of the algebraic formula ax & # 179; + BX + 6
- 13. When x = 2, the value of the algebraic expression ax & # 179; + BX + 1 is 6, then when x = - 2, ax & # 179; + BX + 1 =?
- 14. When x = 2, the cube + BX-1 of the algebraic formula ax equals 6. When x equals - 2, what is the value of this formula?
- 15. How to determine whether x, y is a maximum or a minimum?
- 16. In the sufficient condition of the extremum of binary function, when AC-B ^ 2 > 0, will there be a > 0, C0, which is the minimum value, a or C
- 17. Find the extremum of the function z = x ^ 2-xy + y ^ 2-3y, and point out the maximum and minimum Need calculus process
- 18. f(x)=(ax^2-x)(lnx-1/2ax^2+x)
- 19. It is known that the quadratic function f (x) = ax ^ 2 + BX satisfies the condition 1. For any x belonging to R, f (x-4) = f (2-x) 2. The image of function f (x) is tangent to the line y = X The quadratic function f (x) = ax ^ 2 + BX satisfies the condition 1. For any x belonging to R, f (x-4) = f (2-x) 2. The image of function f (x) is tangent to the line y = X Find: if and only if x belongs to [4, M], f (x-t) ≤ x is constant, try to find the value of T M
- 20. If the quadratic function f (x) = - x ^ 2 + BX + C is a decreasing function in the interval (2, + ∞), and an increasing function in the interval ((∞), 2), its function and X axis intersect at two points a and B, and | ab | = 6, let g (x) be defined as an even function in R, when x > = 0, G (x) = f (x), and write the monotone interval of G (x)