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WB JEE 2012
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7
Duration
60 mins
Package
WB JEE- Previous Year Papers
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7questions
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2012 · Mathematics · Algebra · Sequence And Series
WB JEE 2012
The value of \(\sum\limits_{r = 2}^\infty {{{1 + 2 + .... + (r - 1)} \over {r!}}}\)
2012 · Mathematics · Calculus · Differential Equations
WB JEE 2012
The general solution of the differential equation \({{dy} \over {dx}} = {{x + y + 1} \over {2x + 2y + 1}}\) is
2012 · Mathematics · Trigonometry · Properties Of Triangle
WB JEE 2012
Let p, q and r be the altitudes of a triangle with area S and perimeter 2t. Then, the value of \({1 \over p} + {1 \over q} + {1 \over r}\) is
2012 · Mathematics · Algebra · Quadratic Equations
WB JEE 2012
The quadratic equation 2x2 \(-\) (a3 + 8a \(-\) 1)x + a2 \(-\) 4a = 0 possesses roots of opposite sign. Then,
2012 · Mathematics · Algebra · Matrices And Determinants
WB JEE 2012
\(P = \left[ {\matrix{
1 & 2 & 1 \cr
1 & 3 & 1 \cr
} } \right],Q = P{P^T}\), then the value of determinant of Q is
2012 · Mathematics · Algebra · Permutations And Combinations
WB JEE 2012
A vehicle registration number consists of 2 letters of English alphabet followed by 4 digits, where the first digit is not zero. Then, the total number of vehicles with distinct registration numbers is