Answer:
The answer to your question is:
a) sin Ф = -3/√10
b) cos Ф = 1/√10
c) tan Ф = -3
Step-by-step explanation:
See the picture below
just remember
sin Ф = opposite / hypotenuse
cos Ф = adjacent / hypotenuse
tan Ф = opposite / hypotenuse
