Answer:
5,9,2
Step-by-step explanation:
cos 2 x = cos² x - sin² x = 1 - sin² x - sin² x = 1 - 2 sin² x.
Answer: A ) 1 - sin² x and D ) cos² x - sin² x
Thank you.
Answer:
4 cups
Step-by-step explanation:
Because, 54 cookies divided by 3 cups equals, 18 cookies per cup. 54 cookies plus 18 cookies (aka 1 cup) equals 72 cookies for 4 cups.
A = {x ≥ 3}, B = {x ≤ 1}
So A∪B = {x ≥ 3 or x ≤ 1}
So for x ⊆(1,3), A∪B = ∅
Apparently, (1,3) covers the first option, a will be the answer