JEE Main202529 Jan 2025Morning ShiftMathematicsLimitsActual
Let [t] be the greatest integer less than or equal to t. Then the least value of ( p N ) for which ( _ x 0⁺ (x ( [ 1 x ]+ [ 2 x ]+ + [ p x ] )-x^2 ( [ 1 x^2 ]+ [ 2^2 x^2 ]+ + [ 9^2 x^2 ] ) ) 1 ) is equal to ________.
Correct answer
0
Step-by-step solution
aligned & _ x 0⁺ (x ( [ 1 x ]+ [ 2 x ]+ . .+ [ p x ] )-x^2 ( [ 1 x^2 ]+ [ 2^2 x^2 ]+ [ 9^2 x^2 ] ) ) 1 & (1+2+ +p)- (1^2+2^2+ 9^2 ) 1 aligned aligned & p(p+1) 2 - 9.10 .19 6 1 & p(p+1) 572 aligned Least natural value of p is 24