The answer is 6. Sorry, I don't know why though.
4sin x=2sin x + √3
4sin x-2sinx=√3
2sin x=√3
sinx=√3/2
x=arcsin √3/2=π/3 + 2Kπ U 2π/3+2Kπ
Sol: π/3 + 2Kπ U 2π/3+2Kπ ; K∈Z
π/3+2Kπ=60º+360ºk
2π/3+2Kπ=120º+360ºK
Answer:
5) a=79º b=101º
Step-by-step explanation:
I am not entirely sure but I hope it helps! I'm sorry I only know number 5.
