Misollar:
1. 2sin2x+cos2x ning eng katta qiymatini toping.
Yechish: 2sin2x+cos2x=sin2x+cos2x+sin2x=1+sin2x2. sinx ning eng katta qiymati 1 ga teng bo’lgani uchun sin2x ning eng katta qiymati ham 1 ga teng bo’ladi.
Javob: 2
2. ning eng kichik qiymatini toping.
Yechish: . Bu holda sin2 ning eng kichik qiymati nolga teng.
Javob: 1
3. ifodaning eng katta qiymatini aniqlang.
Yechish:
=. Chunki sin2x ning eng katta qiymati 1 ga teng.
Javob:
Do'stlaringiz bilan baham: |