Answer:
a) in order
-3;-2;-1
b) 6
1-4=-3
2-4=-2
3-4=-1
4-4=0
5-4=1
6-4=2
7-4=3
8-4=4
9-4=5
10-4=6
BC = 11
Step-by-step explanation:
using the sine ratio in the right triangle and the exact value
sin45° = , then
sin 45° = = = = ( cross- multiply )
b. false, i think!