19/x=sin 20
19/sin 20=x
x=55.5522836
Let U={1,2,3,4,5,6,7,8}A={2,3,6}B={2,4,5,7}C={1,7,8}Find the following use the roster method to write method to write the set. E
Ipatiy [6.2K]
A U B = set of all elements that are in both A or B:
A U B = {2, 3, 4, 5, 6, 7}
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Well, zero is between negative and positive numbers. Negative number are less than zero and positive numbers. Positive number are greater than negative number and zero. And, zero is greater than negative number but smaller than positive number.
Negative number < Zero < Positive number
Answer: x= 1/54
Explained: easy mental math :p
we know that
step 1
multiply 
by 
so
step 2
Divide numerator and denominator by 
therefore
the answer is
