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Say True Or False and Justify Your Answer: 10 × 10exponent11 = 100exponent11 - CBSE Class 7 - Mathematics

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Question

Say true or false and justify your answer:

10 × 1011 = 10011

Solution

10 × 1011 = 10011

L.H.S. = 10 × 1011 = 1011 + 1 (am × an = am+n)

= 1012

R.H.S. = 10011 = (10 ×10)11= (102)11

= 102 × 11 = 1022 (am)n = amn

As L.H.S. ≠ R.H.S.,

Therefore, the given statement is false.

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics for Class 7 (2018 to Current)
Chapter 13: Exponents and Powers
Ex. 13.20 | Q: 3.1 | Page no. 260
Solution Say True Or False and Justify Your Answer: 10 × 10exponent11 = 100exponent11 Concept: Laws of Exponents - Multiplying Powers with the Same Base.
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