Answer:
srry i need points
Step-by-step explanation:
(cos2x+cos6x)(cos2x-cos6x) =
(2 sin 4x cos 4x) (2 sin 2x cos 2x) =
sin 8x sin 4x (Answer)
Answer:
1) 136 m²
2) 920 ft²
Step-by-step explanation:
Prism one
Two triangles and 3 rectangles
<em>Triangles</em>
A = 1/2(6)(4)(2)
A = (6)(4)
A = 24 m²
<em>Rectangles</em>
Two rectangles; A = (2)(7)(5)
A = 70 m²
One rectangle; A = (7)(6)
A = 42 m²
Add together all the areas and get 136 m²
Prism two
Two triangles and 3 rectangles
<em>Triangles</em>
A = 1/2(15)(8)(2)
A = (15)(8)
A = 120 ft²
<em>Rectangles</em>
One rectangle; A = (17)(20)
A = 340 ft²
One rectangle; A = (20)(8)
A = 160 ft²
One rectangle; A = (20)(15)
A = 300 ft²
Add together all the areas and get 920 ft²
The answer is one and five eighths.
Answer:
Step-by-step explanation:
The best way to start this question is to find the value of the big 3. The big three (on your calculator) are the sin cos and the tangent. Once you have them, the other three are just the reciprocals.
Sin36 = 0.588
Cos36= 0.809
Tan36 = 0.727
============
Now for the other three, which are not on your calculator (directly)
Csc(36) = 1/sin(36) = 1/0.588 = 1.70
Sec(36) = 1/cos(36) = 1/ 0.809 = 1.236
cot(36) = 1/tan(36) = 1/0.727 = 1.376
I don't know if you remember who marries who here. I always remember that cofunction goes with the non cofunction. So the sin and csc are going out together. The cot and tan are dating etc.