Synopsis IAS

Answer

Solution

UPSC Prelims

Mathematics

Theme:

Elementary Algebra / प्रारंभिक बीजगणित

Q9 2022, Elementary Algebra

Which number amongst 2⁴⁰, 3²¹, 4¹⁸ and 8¹² is the smallest?

2^40, 3^21, 4^18 और 8^12 में से कौन-सी संख्या लघुतम है?

Explanation

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2 , 3 , 4 and 8 can be rewritten as 2 , 3 , 2 and 2 .

It will be 2⁴⁰, 3²¹, 2³⁶, 2³⁶

Third and fourth numbers are equal thus they cant be smallest.

First number is greater than these two numbers thus that also can not be smallest.

Thus smallest number is 3²¹

व्याख्या Please wait..

Q 9. 2022, Elementary Algebra

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