No it is not a function the are two inputs for one output
We know that
sin²x+cos²x=1
so
clear cos x
cos x=(+/-)√[1-sin²x]
in this problem
<span>Angle 0 is in quadrant 1 -----> cos o and sin o are positive
</span>sin o=2/5
cos x=√[1-(2/5)²]----> cos o=√[1-4/25]----> cos o=√[21/25]---> cos o=√21/5
the answer is
cos o=√21/5
Answer:
2.5
Step-by-step explanation:
because you can tell by the numbers and how close they are then u have to divide
Answer:b
Step-by-step explanation:
3.5*5*.5=8.75
i believe the answer is y=1/9+3 4/9
:)
