Y = sin3xcos3x2. Y = 1 / 2-sin square X3. Y = sin (x - π / 3) cosx

Y = sin3xcos3x2. Y = 1 / 2-sin square X3. Y = sin (x - π / 3) cosx

2 and 3 Max π, 1 min π / 3

It is known that the minimum positive period of the function f (x) = sin (Wx + π / 6) (W > 0) is π
Let a ∈ (0, π / 2), β∈ (π / 2, π), f (A / 2 + π / 6) = 3 / 5, f (β / 2 + 5, π / 12) = - 12 / 13, find the value of sin (a + β)

Mathematical answer group for you to answer, I hope to help you
If the minimum positive period of the function f (x) = sin (Wx + π / 6) (W > 0) is π, then w = 2
F (A / 2 + π / 6) = 3 / 5, that is sin (a + π / 3 + π / 6) = 3 / 5, sin (a + π / 2) = 3 / 5, a ∈ (0, π / 2),
Then cosa = 3 / 5, Sina = 4 / 5,
F (β / 2 + 5 π / 12) = - 12 / 13, that is sin (β + 5 π / 6 + π / 6) = - 12 / 13, sin (β + π) = - 12 / 13, β∈ (π / 2, π),
Then sin β = 12 / 13, cos β = 5 / 13,
So: sin (a + β) = sinacos β + cosasin β = 56 / 65

Given the function y = sin (Wx + π / 6), where the minimum positive period of W > 0 is π / 2, then w=

Given the function y = sin (Wx + π / 6), where the minimum positive period of W > 0 is π / 2, then w = 4
Minimum positive period = 2 π / w = π / 2
The solution is w = 4
If you don't understand this problem, you can ask,

It is known that the minimum positive period of the function f (x) = sin (2wx Pai / 6) + 1 (W belongs to R, X belongs to R) is Pai, and the image is symmetric with respect to x = Pai / 6
The analytic expression of F (x) by 1
2 if the image of function y = 1-f (x) and line y = a have and only have one intersection point on [0, Pai / 2], the value range of real number a is obtained
I'm a rookie. I know how to add 5 points

1. The minimum positive period T = 2 π / 2|w| = π w = ± 1
If the image is symmetric with respect to x = Pai / 6, then sin (2W * π / 6 - π / 6) = 1 or - 1
So w = - 1
f(x)=sin(-2x-π/6)+1=-sin(2x+π/6)+1
2.y=1-[sin(-2x-π/6)+1]=sin(2x+π/6)
0

2:30 is equal to 2.5, 2:40 is equal to how much?

8/3

Two and three eighths of a ton equals () kilogram, and 2:40 equals () hour

Two and three eighths of a ton is equal to (2375) kg, and 2:40 is equal to (2 and 2 / 3)

48:40 is equal to the next day

It's two days and 40 minutes