1. x=14
2. x=5
3. x=2.5
4.x=9
5.x=5
6.x=13
7.x=-2
8.x=-2
9.x=-10
10.x=13
11.x=-3
12.x=-11
13.x=0
14.x=0.58
15.x=-1.6
hope this helps :)
I think it’s 76 degrees not 100% sure though but you can try it lol
If sinα=cosß it means that ß=90-α. This also means that α+ß=90 so we can say:
4k-22+6k-13=90
10k-35=90
10k=125
k=12.5°
...
The above identity comes up a lot, and is one worth committing to memory for sure.
sinα=cos(90-α) or vice versa cosα=sin(90-α)
