Math, asked by abhijeetgaming5463, 7 months ago



1) 2+2+2+2 can be written as .......... *

2 points

2⁴

2 x 4

2+4

None of the above

2) What is the index in the given number? *

2 points



2

8

4

None of the above

3) 5¹ = ? *

2 points

1

5

0

51

4) Find the value of 2³. *

2 points

2

3

6

8

5) 3² is read as________? *

2 points

3cube

2cube

3square

2square

6) 2³ x 2⁴ =? *

2 points



2 raised to 7

7 raised to 2

None of the above

7) 2⁴ ÷ 2³ =? *

2 points

2 raised to 7

2 raised to 1

0

1

8) (5/3) raised to -1=? *5/3

3/5

0

1

9) 5/3 is ............ of 3/5. *

2 points

multiplicative inverse

additive inverse

Inverse

none of the above

10) (-1) raised to m = 1,then m is a/an ______number. *

2 points

even

odd

prime

none of the above








Answers

Answered by nehanairbaba
0

Answer:

Step-by-step explanation:

We can start and end the summation at any value of nnn. For example, this sum takes integer values of nnn from 444 to 666:

\begin{aligned} &\phantom{=}\displaystyle\sum_{\goldD n=4}^6 \goldD n-1 \\\\ &=\underbrace{(\goldD 4-1)}_{\goldD{n=4}}+\underbrace{(\goldD 5-1)}_{\goldD{n=5}}+\underbrace{(\goldD 6-1)}_{\goldD{n=6}} \\\\ &=3+4+5 \\\\ &=12 \end{aligned}  

​  

 

=  

n=4

6

​  

n−1

=  

n=4

(4−1)

​  

 

​  

+  

n=5

(5−1)

​  

 

​  

+  

n=6

(6−1)

​  

 

​  

 

=3+4+5

=12

​  

 

We can use any letter we want for our index. For example, this expression has iii for its index:

\begin{aligned} &\phantom{=}\displaystyle\sum_{\goldD i=0}^2 3\goldD i-5 \\\\ &=\underbrace{[3(\goldD 0)\!-\!5]}_{\goldD{i=0}}+\underbrace{[3(\goldD 1)\!-\!5]}_{\goldD{i=1}}+\underbrace{[3(\goldD 2)\!-\!5]}_{\goldD{i=2}} \\\\ &=-5+(-2)+1 \\\\ &=-6 \end{aligned}  

​  

 

=  

i=0

2

​  

3i−5

=  

i=0

[3(0)−5]

​  

 

​  

+  

i=1

[3(1)−5]

​  

 

​  

+  

i=2

[3(2)−5]

​  

 

​  

 

=−5+(−2)+1

=−6

​  

Answered by Aarondelta
1

Answer:

Option d)2x4

Step-by-step explanation:

2+2+2+2 can also be considered as 2 added 4 times which is the key concept of multiplication

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