Answer:
x = 180
Step-by-step explanation:
First, you need to know
1. Double-angle formula:
cos(2x) = 
2. Pythagorean identity:
Back to your problem, replacing the variable by the above:
By Double-angle formula
By Pythagorean identity
Given 
, we know -1 < sinx < 1, for every x ∈ R
The answer would be 18550$. you would find 7.25% of 20000, multiply it by 5, then subtract it from 20000 to get 18550$.
Answer: -11
Step-by-step explanation:
+(-8) can be simplified to -8 because when you multiply a positive sign by a negative sign, the outcome is a negative sign. So your problem is -3-8= and the answer is -11 because when two numbers with the same sign are subtracted/added by each other, the numbers just get added and the sign stays the same. If you're still confused, use a number line. Hope this helps!
Answer:
The answer is 2
Step-by-step explanation:
sin60°+ 2 tan45° - cos30°
sin60° = √3/2
2 tan45° = 1
cos30° = √3/2
sin60°+ 2 tan45° - cos30°
√3/2 + 2(1) - √3/2
√3/2 - √3/2 + 2(1)
0 + 2 = 2
Thus, The answer is 2
<u>-TheUnknownScientist</u>
