tolong ya no 7 &8 pake cara

7. [sin(θ)+sin(3θ)]÷[cos(θ)-cos(3θ)]
[2sin(2θ)cos(-θ)]÷[-sin(2θ)sin(-θ)]
[-cos(-θ)]÷[sin(-θ)]
[-cos(θ)]÷[-sin(θ)]
cot(θ) {E}

8. [sin(3x)sin(x)]÷[cos(x)-cos(3)]
[2cos(2x)sin(x)]÷[-2sin(-2x)sin(-x)]
[cos(2x)]÷[sin(2x)]
cot(2x) {E}

semoga membantu, jadikan jawaban terbaik yaa