Question 5. Given that cos(O) = 4/5, find: a) sin(0) b) tan (0)
1 answer:
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<em>Answer:</em>
<em>Step-by-step explanation:</em>
<em>by a romanian guy...</em>
First we are going to find the common denominator of both fractions. To do that, we are going to multiply their denominators:
Now we can rewrite our expression using the common denominator:
Finally, we can use the trig identities:
and 
to simplify our trig expression:
We can conclude that the correct answer is the fourth one.
Now we can rewrite our expression using the common denominator:
Finally, we can use the trig identities:
We can conclude that the correct answer is the fourth one.