Let x belong to {0, π / 2}. F (x) = sin (cosx), G (x) = cos (SiNx) find the maximum and minimum of F (x) and G (x)

Let x belong to {0, π / 2}. F (x) = sin (cosx), G (x) = cos (SiNx) find the maximum and minimum of F (x) and G (x)

Y = sin ^ 2 (x) 2sinxcosx 3cos ^ 2 (x) = sin ^ 2 (x) 2sinxcosx 2cos ^ 2 (x) = 1 sin 2x 2cos ^ 2 (x) = 2 sin 2x (2cos ^ 2 (x) - 1) = sin 2x cos 2x 2 = √ 2 (sin 2X * (√ 2 / 2) cos 2x * (√ 2 / 2)) 2 = √ 2 (sin (2x (π) / 4) 2

The solution equation is: | 4x - | 4x-4 | + 6 | = 16-6x

If x > = 1 | 4x-4x + 4 + 6 | = 10 = 16-6x - > x = 1, the solution is 1
If x

The solution of the equation AX + a = X-9 of X is equal to the solution of 2x + 5 = 4x-3

The solution x = 4 of 2x + 5 = 4x-3
The solutions of the two equations are the same, and x = 4 is replaced by ax + a = X-9
Then 5A = - 5, so a = - 1

9X（4x-7）—（6x+5）（6x—5）+38=0

9X（4x-7）—（6x+5）（6x—5）+38=0
36x^2-63x-36x^2+25+38=0
63x=25+38
63x=63
x=1

-Simple calculation of 1,1 / 4x-3,5 / 4
-Simple calculation of 1,1 / 4x (- 3) and 5 / 4

Hello
-1 and 1 / 4x-3 and 5 / 4
=5/4x19/5
=19/4
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Simple operation of 17 and 3 / 7 + 4 / 17-7 and 3 / 7

17 and 3 / 7 + 4 / 17-7 and 3 / 7
=17 and 3 / 7-7 and 3 / 7 + 4 / 17
=10+4/17
=10 and 4 / 17

-Simple calculation of 17 * (- 3 and 1 / 17)
-17 * (- 3 and 1 / 17)
99 and 62 / 72 * (- 36)
（-125）*（-25）*（-5）*（-2）*（-4）*
（-8）
57*55/56+27*27/28
Right now,

-17 * (- 3 and 1 / 17)
=17 * (3 and 1 / 17)
=17*3+17*1/17
=51+1
=52
99 and 62 / 72 * (- 36)
=（100-10/72）*（-36）
=100*（-36）-10/72*（-36）
=-3600+5
=-3595
（-125）*（-25）*（-5）*（-2）*（-4）*（-8）
=（-125）*（-8）*（-25）*（-4）*（-5）*（-2）
=1000*100*10
=1000000
57*55/56+27*27/28
=[56+1]*55/56+(28-1)27/28
=56*55/56+55/56+28*27/28-27/28
=55+55/56+27-27/28
=82+1/56
=82 1 / 56
I wish you progress in your study

Simple calculation of 0.25 × 49 + 3 / 4 × 17

=0.25*49+(1-0.25)*17=17+0.25*(49-17)=17+8=25

Simple calculation of 2x + 3 / 4x = 11

(2+3/4)x=11
(11/4)x=11
x=11÷11/4
x=4

The solutions of the equations 4x + 3Y = 17, 10x-y = 17 are___ ．

We can get 4x + 3Y = 17 (1) 10x-y = 17 (2), y = 10x-17 (3) from (2), substituting (3) into (1), x = 2, substituting (2) into (2), y = 3. Then the solution of the equations is x = 2Y = 3