It would be one because that's the only number that goes into all of them

1 <----- that's your answer

(-6 - 5i)(1 - 3i)

you foil this like you would any other set of binomials, so you'll multiply negative 6 and 1, then -5i and 1, etc:

-6 - 5i + 9i - 15

5i and 3i simplify to -15 because 5*3 is 15, and i*i = -1

then you just add like terms:

-21 - 5i + 9i

**-21 + 4i** is your answer.

**Answer:**

1 - cosΘ

**Step-by-step explanation:**

using the identity

sin²x + cos²x = 1 , then

sin²x = 1 - cos²x

= ← factor 1 - cos²Θ as a difference of squares

= ← cancel 1 + cosΘ on numerator/ denominator

= 1 - cosΘ

**Answer:**

i think 3/4

**Step-by-step explanation:**

Answer: C

Step-by-step explanation: