Welcome to Ospin Academy
Your one-stop solution for NCERT answers from Classes 6 to 10
NCERT Solutions
Get Free NCERT PDFs
If you want to download free PDFs of any chapter from any subject, click the link below and join our WhatsApp group (যদি তুমি যিকোনো বিষয়ৰ বিনামূলীয়া PDF ডাউনলোড কৰিব বিচৰা তেন্তে তলৰ লিংকটোত ক্লিক কৰা আৰু আমাৰ WhatsApp গ্ৰুপটো Join কৰা):
Exercise 13.1
1. Find the correct answer:
(i) The value of (-1)^1 is
(ii) The value of (-5)^5 is
2. Express in exponential form:
(i) 5x5x5x5x5
(ii) 3x3x2x2x2
(iii) (-2)x(-2)x(-2)x3x3x3x3
(iv) bxbxbxbxbxcxcxc
(v) axaxaxbxbxcxcxcxcxc
3. Find the value of:
(i) 2^7
(ii) (-2)^7
(iii) 3^6
(iv) (-3)^6
(v) 2^5 x 4^4
(vi) 5^2 x 3^3
(vii) (-3)^2 x (-5)^3
4. Express in exponential form:
(i) 343
(ii) 729
(iii) 2187
(iv) -2187
(v) 3125
(vi) -3125
5. Express each of the following numbers as a product of the powers of their prime factors:
(i) 100
(ii) 300
(iii) 1000
(iv) 2700
(v) 405
(vi) 1600
6. Fill in the blanks with appropriate sign (> or <):
(i) (-5)^3 ... 5^3
(ii) (-5)^2 ... 5^2
(iii) (-7)^4 ... 7^4
(iv) (-1)^15 ... (-1)^10
(v) (-1)^1 ... 1
(vi) 2^7 ... 2^6
7. If 2592 = 2^m x 3^n, then find the value of m and n.
8. If 16875 = 3^m x 5^n, then find the value of m and n.
){kind=link}
Thank You