1 To improve strength and power,
sets are recommended
1) 1-2
2) 2-4
3) 3-4
4) 5-6

1-2 is the answer

2) 2-4

2-4 is to improve strength and power,

o improve strength and power,sets are recommended.

explanation:

daily refers to frequency, like weekly or monthly. take this medicine twice daily, once in the morning and again at bedtime. on a daily basis there refers to everyday life, to one's normal or usual behavior, activity, routine, or schedule, to the quotidien.