`B=3\sqrt{(-3)²}-2\sqrt{4}`
`=3.|-3|-2.2`
`=3.3-4=5`
`→D`
Đáp án:
D . 5
Giải thích các bước giải:
B = 3$\sqrt{(-3)^2}$ - 2$\sqrt{4}$
= 3 . 3 - 2 . 2
= 9 - 4
= 5
⇒ Chọn D
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Tìm và sửa lỗi sai nhé, giải thích giúp mình nữa ạ, mình cảm ơn
Nghiệm của pt lượng giác: Cosx/2=-√3/2 Sinx/2=1 Help me,please!!
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câu trả lời là gì vậy mọi người
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