Answer:
cos(theta+2π) and -cos(-theta)
Step-by-step explanation:
theta plus 2π have the same cosine output as theta on a graph.
the negative cosine of negative theta is equal to the positive cosine of positive theta.
Answer:
Im sort of confused but it is 1 cup of bananas for every 1 cup of apple juice.
Step-by-step explanation:
Let the two numbers be -x and -x - 1, then
-x(-x - 1) = 1,122
x^2 + x = 1,122
x^2 + x + 1/4 = 1,122 + 1/4
(x + 1/2)^2 = 4,489/4
x + 1/2 = sqrt(4,489/4) = + or -67/2
x = 67/2 - 1/2 = 66/2 = 33
Therefore, the two numbers are -33 and -34
The lateral surface area consists of 2 sides with 11 unit long and 4 unit high, and 2 sides with 8 unit long and 4 unit high. Each side is a rectangle. So basically you use area of rectangle to determine the lateral surface area
lat sa = 2 × area of rectangle + 2 × area of rectangle
In this case, it will be
lat sa = (2 × l × h) + (2 × w × h)
lat sa = (2 × 11 × 4) + (2 × 8 × 4)
lat sa = 88 + 64
lat sa = 152
The lateral surface area is 152 squares unit
