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Simplification: 3 (x-1 / 3) - (x + 1) This is the knowledge of integral addition and subtraction
3 (x-1 / 3) - (x + 1)
=3x-1-x-1
=2x-2
RELATED INFORMATIONS
- 1. The following individuals can be calculated as simple as possible. 21 / 7 △ 15 / 28 × 15 / 21 (3 / 4-1 / 2-1 / 6) × 12
- 2. Is the left and right limit x ~ 0 of the power X of e the same
- 3. First decompose the factor, then evaluate it: 9x2 + 12xy + 4y2, where x = 43, y = − 12
- 4. Connection: 28.40 out of 21, 3.1 out of 8 and 1.3 out of 3 Connection: 28 / 21, 15 / 40 3.1 out of 8 and 1.50 out of 3
- 5. A problem about the limit of higher numbers When x tends to 2, the square of y = x tends to 4|
- 6. 1 / 2 ^ 1 + 1 / 2 ^ 2 + 1 / 2 ^ 3 +. + 1 / 2 ^ n is equal to what? How? Which formula?
- 7. The reasonable method is used to calculate (2 ／ 3 + 3 ／ 7 + 5 ／ 21) ／ 1 / 21 ／ 0.28
- 8. A problem of limit in Higher Mathematics Prove by definition: LIM (4x + 1) = 9
- 9. A ^ 0 + A ^ 1 + A ^ 2 + A ^ 3. + A ^ n =? What is the formula equal to
- 10. How much is (1 + 1 / 2) + (1 + 2 + 1 / 3) + (1 + 2 + 3 + 1 / 4) +... + (1 + 2 +... + 1 / 99)? You can use Gaussian algorithm, but I don't know how to do it,
- 11. High number limit operation Lim {1 / (1-x) -- 1 / (1-x ^ 3)}, X tends to 1
- 12. Simple calculation of 2 / 3 △ 15 / 28 × 5 / 21
- 13. Simplified evaluation: 2 (x + y) &# 178; - 5 (x + y) (X-Y) + 3 (X-Y) &# 178;, where x = 5 / 2, y = 3 / 5
- 14. High number limit operation Limf (x) = + 00 limg (x) = + 00 limh (x) = a LIM (f (x) + G (x)) = + 00 and lim (f (x) + H (x)) = + 00 LIM (f (x) g (x)) = + 00 are correct? Not according to the limit algorithm, what can we do when infinity or limit does not exist?
- 15. What is three seventh to six seventh Simplification
- 16. 1, - 2,3, - 4,5, - 6,7, - 8. What's the rule Use the formula to express!
- 17. What's two fifths to one
- 18. Find the rule: three + four = five, five + twelve = thirteen, the nth formula is Observe a set of formulas Square of 3 + square of 4 = square of 5 Square of 5 + square of 12 = square of 13 Square of 7 + square of 24 = square of 25 Square of 9 + square of 40 = square of 41 What is the nth formula
- 19. A problem of higher number about limit lim [1/（1-x）-3/(1-x)³] x→1
- 20. How many days is 21 years