Căn bậc hai số học của 9 là:
Toán 9/9

Quiz
•
Mathematics, Education
•
KG - 9th Grade
•
Medium

Thầy Duy
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13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
-3
3
81
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Số 16 có hai căn bậc hai là:
4
-4
256
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
4
-4
Không có
-2
4.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
5.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
Cho tam giác ABC vuông tại A có AH vuông góc với BC (H thuộc BC). Cho biết AB = 90, AC = 120. Tính CH.
Trả lời: CH=
6.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
Cho tam giác ABC vuông tại A có AH vuông góc với BC (H thuộc BC). Cho biết AB = 90, AC = 120. Tính AH.
Trả lời: AH=
7.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
Cho phương trình :
Nghiệm của phương trình là x=
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