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Grade 12th PassIIT JEE Entrance Exam

The sum of the greatest and the smallest terms in (x + 12)^21 is zero then x can take values:
a.-10 b.-21 c.-28 d.-6

Profile image of ats
6 Years agoGrade 12th Pass
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3 Answers

Profile image of Saurabh Koranglekar
6 Years ago
Dear student

The smallest term is 21c21 x^21


Largest term is 21c10 x^10 12^11

The terms can be added and value of x can be obtained

Regards
Profile image of Arun
6 Years ago
As greatest + smallest = 0
 
hence smallest = – grestest
 
means both are numerically greatest term
 
Hope it helps

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