toán số

toán số

9th - 12th Grade

66 Qs

quiz-placeholder

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toán số

toán số

Assessment

Quiz

Mathematics

9th - 12th Grade

Practice Problem

Medium

Created by

Raincandy U

Used 1+ times

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66 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 20 pts

cho a >0, m,n ∈ℝ . Khẳng định nào đúng

aᵐ+aⁿ=aᵐ⁺ⁿ

aᵐ.aⁿ=aᵐ⁻ⁿ

(aᵐ)ⁿ=(aⁿ)ᵐ

aᵐ ⁄aⁿ=aᵐ⁻ⁿ

2.

MULTIPLE CHOICE QUESTION

15 mins • 20 pts

P=a

P=a³

P=a⁴

P=a⁵

3.

MULTIPLE CHOICE QUESTION

15 mins • 20 pts

4.

MULTIPLE CHOICE QUESTION

15 mins • 20 pts

m²-n²=312

m²+n²=543

m²-n²=-312

m²+n²=409

5.

MULTIPLE CHOICE QUESTION

15 mins • 20 pts

rút gọn biểu thức Q=b^⁵⁄₃ :∛b với b>0

Q=b^-⁴⁄₃

Q=b^⁴⁄₃

Q=b^⁵⁄₉

Q=b²

6.

MULTIPLE CHOICE QUESTION

15 mins • 20 pts

tính giá trị biểu thức P=(7+4√3)²⁰¹⁷.(4√3-7)²⁰¹⁶

P=(7+4√3)²⁰¹⁶

P=1

P=7-4√3

P=7+4√3

7.

MULTIPLE CHOICE QUESTION

15 mins • 20 pts

với mọi số thực dương a,b,x,y và a,b≠1, mệnh đề nào sai

logₐ(xy)=logₐx+logₐy

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