Log2 8 = c hope this helps my n.i.b.b.a (apex)
Answer:
x = 4 and y = - 5
Step-by-step explanation:
note that the product of a complex number and it's conjugate is real
That is
(a + bi)(a - bi) where a, b are real
= a² - abi + abi - b²i²
= a² + b² ← a real number
For (4 + 5i)(x + yi) to be real
we require (x + yi) to be the conjugate of 4 + 5i , that is 4 - 5i
(4 + 5i)(4 - 5i) ⇒ x = 4 and y = - 5
180-134=46 98+46=144. 180-144=36. angle y=36. So the answer is D)36.
Answer:
Step-by-step explanation:
Socratic had the answer on there I think
