1 x of 8-2 is 3 + 3 x of 4,

1 x of 8-2 is 3 + 3 x of 4,

1 x in 8-2 is 3 + 3 x in 4
Multiply both sides by 4
32-2x=12+3x
5x=20
x=4

Given {x + 3} times {X-2} of 3x + 4 = x + 3 of a minus X-2 of B [a, B is an integer], then how much a = and how much B is equal to

Write the equation as (3x + 4) / (x + 3) (X-2) = A / (x + 3) - B / (X-2)
Sort out the right equation as [a (X-2) - B (x + 3)] / (x + 3) (X-2)
So (3x + 4) = (a-b) x-2a-3b
Thus, A-B = 3, 2A + 3B = 4
The solution is a = 1, B = - 2

It is known that a = {x | 3x-1 is less than 2x + 2}, B = {x | 2 / 3 x + 1 is greater than or equal to 6 minus 1 / 3 x process

3x-1＜2x+2
x＜3
A={x|3x-1＜2x+2}={x|x＜3}
2(x+1)/3≥6-x/3
2x+2≥18-x
3x≥16
x≥16/3
B={x|2(x+1)/3≥6-x/3}={x|x≥16/3}
If you don't understand, please hi me, I wish you a happy study!

2 / 3x-2 is less than or equal to 3 / 3x-1

3x-2/2

F (x) = SiNx / X

Formula: (U / V) '= (u'v-uv') / V ^ 2
f'(x)=[(sinx)'x-(sinx)x']/x^2
=(xcosx-sinx)/x^2

What's the square of SiNx

It's SiNx squared

What is the square of 1-sinx

=The square of cosx

What is the square of 1 + SiNx?

The square of two cos

The square of SiNx equals 0.21. What is the degree of X

It is not a special value, expressed as an inverse function, x = arcsin root 0.21

How to find the derivative of sin 2x

(sin2x)′
=cos2x*(2x)′
=2cos2x