Answer: 3
Step-by-step explanation:
The sine of an angle is equal to the cosine of its complement, so

The different combinations is 9, since we can't rearrange the two novels.
I did 3*3 which equals 9.
Answer:
x = 6
y = -2
Step-by-step explanation:
6 - 8 = -2
2 x 6 = 12 - 14 = -2