Answer:
2 - sqrt(3)
Step-by-step explanation:
Split pi/12 into two angles where the values of the six trigonometric functions are known.
tan (pi/4 - pi/6)
Apply the difference of angles identity

tan(pi/4) = 1 , tan(pi/6) = (sqroot3)/3
Plug in and Simplify



Need to multiply this by 
Expand and simplify numerator: 
Expand and simplify denominator: 
Cancel the common factor: 
Answer:
n = 60
Step-by-step explanation:
GIVEN DATA:
Total sum of consecutive number is 1800
sum of n number is given as

where n is positive number and belong to natural number i.e 1,2,3,4,...
from the data given we have
solving for n we get
[/tex]n^2 + n -3600 = 0[/tex]
n = 59.5, -60.5
therefore n = 60
C, because 12 squared plus 16 squared equals 544, then you take the square root of
9) inequality: 4+x>13 Solution: x>9
10) x+19 ≥ 8.2 ; x≥-10.8
11) (Sorry I don’t know what the question means by “interpret”) 17+x ≤ 26; Solution: x ≤9
12) 785+x≤1500; Solution: x≤715