If the point (3/5,4/5) corresponds to an angle θ in the unit circle, what is tan θ ?
2 answers:
A point M on the unit circle could be represented by (x , y), which coordinates are nothing but cos Ф (for x) & sin Ф (for y, hence:
tan Ф = sin Ф / cos Ф ==> tan Ф (4/5) / (3/5) ==> tan Ф =(4/3).
Now let's calculate the angle: tan⁻¹Ф ==> tan⁻¹(4/3) ≈43°
Answer:

Step-by-step explanation:
A point M on the unit circle is represented as (x,y) for which the coordinates are
for x and
for y.
Now, we know that in unit circle
is written as:

=
Thus,the value of
.
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