Answer:
Step-by-step explanation:
I'm going to use a Pythagorean identity to help make this make sense.

We are given that cos(0) = 1, so
cos²θ = 1² which simplifies to
cos²θ = 1. So filling into our trig identity:
sin²θ + 1 = 1 and
sin²θ = 0 then
sinθ = √0 so
sinθ = 0
so
sin(0) = 0
Answer:
Answers are below.
Step-by-step explanation:
Problem 2:
Area = approx. 11.3 (rounded to nearest tenth)
A = 1 / 4b
1/4 x 4 x
11.31371
11.31371 rounded to the nearest tenth is 11.3
Problem 3: i'm not too sure sorry :(
Answer:
Square root of 12 = 3.46410161514
Square root of 15 = 3.87298334621
Difference = .3219671948
Step-by-step explanation:
Put it on a number line and that should be ur answer, also plz mark brainliest.