Yo sup??
cosx>0 in the 1st and 4th quadrant.
tanx>0 in the 1st and 3rd quadrant.
therefore the common solution is x lies in 1st quadrant.
Hence the correct answer is option A.
Hope this helps
The shirts were sold at $15 each.
4,153+2,988
-12 +12
4,141+3,000
3,000+4,000=7,000
7,000+141=7,141
0 is the answer 79.83-54.91-24.92=0
