Answer: -ln |cos x| - ln |sin x| + C
<u>Step-by-step explanation:</u>

Answer: 10 packets
Step-by-step explanation:
There is 4 quarts needed to make 1 gallon
20 quarts for 5 gallons
1 packet=2 quarts
10 packets=20 quarts
3 3/5 or can be said as three and three fifths
The answer would be -8% or just the naked 8