Answer:
1.5 hours= 1hour and 30 minutes
Step-by-step explanation:
90÷15=6
6÷2=3
48÷16=3
3÷2=1.5
Sin (tan^(-1)X)
Sin (1/tan X)
Sin (1/1 / tan X/1)
Tan X = sin X/cos X
Sin (1/1 / sin X/cos X)
Sin (1/1 • cos X/Sin X)
Sin (cos X/sin X )
Cos X.
I believe the correct answer is cos X.