NCERT - Mathematics

Book: NCERT - Mathematics

Chapter: 12. Exponents and Powers

Subject: Maths - Class 8th

Q. No. 7 of Exercises 12.1

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7

Simplify

(i)

(ii)

(i) Formula:


am/an = a(m-n)




By using above formula in question:



(ii) Formula:


am/an = a(m-n)




By using above formula in question:



= 55


= 3125


 

7

Chapter Exercises

Exercises 12.1
Exercises 12.2

More Exercise Questions

1

Evaluate.

(i)


(ii)


(iii)

2

Simplify and express the result in power notation with positive exponent.


(i) (-4)5 ÷ (-4)8  


(ii) 


(iii) 


(iv) (3-7 ÷ 3-10) × 3-5


(v)  2-3 × (-7)-3


 
3

Find the value of.

(i)

(ii)

(iii)

(iv)

(v)

4

Evaluate

(i)

(ii)

5

Find the value of m for which 5m ÷ 5-3 = 55.
6

Evaluate

(i)


(ii)

7

Simplify

(i)

(ii)