material composed of two or more elements or compounds that are physically mixed together but not chemically combined whats the
1 answer:
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let's firstly convert the mixed fraction to improper fraction and then take it from there, keeping in mind that the whole is "x".
Answer:
Step by step
Remember, a reference angle is a positive acute angle that represents an angle θ of any measurement.
a)
, then its reference angle is
b)
is in the second cuadrant, then its reference angle is
c)
, then it is in the first cuadrant and the reference angle is
.
d)
and it is in the third cuadrant, then its reference angle is