Answer:
20
15
11
Step-by-step explanation:
Answers off Edgenuity
Heya !
In mathematics, the complex conjugate root theorem states that if P is a polynomial in one variable with real coefficients, and a + bi is a root of P with a and b real numbers, then its complex conjugate a − bi is also a root of P.
Here , one complex root is given -6i hence , the other must be 6i.
Hope it helps you ! :)
Your answer for Q is rotated over the period and flipped upside down.
Answer: (i) 1 (ii) 3/4 , √3/3 (iii) 0 (iv) 1
<u>Step-by-step explanation:</u>
ΔRPQ is 1 30°-60°-90° triangle <em>because RQ = 2PQ</em> , where
(i) sin² (90°) = 1² = 1


(iii) sin (90°) × cos (90°) = 1 × 0 = 0
(iv) sin² (90°) - cos² (90°) = 1² - 0² = 1