Answer:
D
Step-by-step explanation:
1. Remind that

Here you can use trigonometric table to find the value of
, or you can remind that
and
because special right triangle 45°-45°-90° is isosceles (with congruent oppposite and adjacent legs) and the ratio between the opposite leg and adjacent leg is equal to 1.
2. Now

because

Answer:
do the possible math functions first like 3 x 2 and 6 + 96
Answer:
Yes, its a linear function.
Step-by-step explanation:
Answer:
(y + 7i)(y - 7i)
Step-by-step explanation:
It cannot be factored using real numbers, but consider
7i × - 7i
= -49i² and i² = - 1
= 49
The factoring as a difference of squares to obtain
y² + 49 = (y + 7i)(y - 7i)