If a > 3, simplify A-1 + 3-a

If a > 3, simplify A-1 + 3-a

solution
A>3
∴3-a<0
∴|3-a|=-(3-a)
∴a-1>3-1
A-1 > 2 > 0
∴|a-1|=a-1
The original formula
=a-1-(3-a)
=a-1-3+a
=2a-4

Simplification of (1 + a) (1-A) - A (A-3)

Original formula = 1-A 2 - a 2 + 3A
=1-2a²+3a
Hope to help you!

(3-A) (3-10 a) + (A-4) ^ 2 =? Reduction

The original formula = 9-A? + a? + 16-8a = 25-8a

Simplify a ^ 2 + 3 / A ^ 2-1 - A + 1 / A-1 + 1 equal to?

It is (a ^ 2 + 3) / (a ^ 2-1) - (a + 1) / (A-1) + 1
= （a^2-1+4）/（a^2-1） - （a-1+2）/（a-1） +1
= 1 + 4/（a^2-1） - 1 - 2/（a-1） +1
= 1 + 4/（a^2-1）- 2(a+1)/（a^2-1）
= 1 - (2a +2 -4)/（a^2-1）
= 1 - 2(a - 1)/（a^2-1）
= 1 - 2/(a + 1)

2 √ 1 / 3 reduction

2√(1/3)
=2√[(1/3)²×3]
=(2√3)/3

How to simplify 1 / (√ 3 + 2)

（1/（√3+2））*（√3-2）/√3-2）=（√3-2）/(3-4）=2-√3

Simplify √ (3 - π) ^ 2, √ 2 * (√ 2 + 1 / √ 2)

√(3-π)^2
=π - 3 (because π > 3)
√2*(√2+1/√2)
=2+1
=3

Simplify (3 + 1) (3 ^ 2 + 1) (3 ^ 4 + 1) (3 ^ 6 + 1)

=(3-1)(3+1)(3^2+1)(3^4+1)(3^6+1)/(3-1)
=(3^2-1)(3^2+1)(3^4+1)(3^6+1)/2
=(3^8-1)(3^6+1)/2
=(3^14+3^8-3^6-1)/2
=3^13+3^7-3^5-0.5

1:3.5, reduction ratio,

Hello!
1:3.5
=10:35
=2:7
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Simplify 1:5:1:2:3

5：1：3