The answer is C : x = 2 rad 2 and y= 2 rad 3
Answer:
radical form, they occur as two conjugates.
That is,
The conjugate of (a + √b) is (a - √b) and vice versa.
To show that the given conjugates come from a polynomial, we should create the polynomial from the given factors.
I'll assume those are squares. We know D is an identity:
Dividing through by
That's A.
Dividing the original through by
Not quite B, wrong sign on tangent.
C has the wrong sign on cosine squared as well.
Identities: A & D
The y intercept (b) = 4 and the slope (m) is 12
y = mx + b so its:-
y = 12x + 4
2x + (2)9 = 48
2x + 18 = 48
Get 2x by itself
2x = 30
x = 15