The coefficient of r' in the expansion of (I +x ) (1 + x2)
(1 + x3)
... (1 + x100) is
(JEE Adv. 2015)
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If one zero of quadratic polynomial x 2 3x K is 2 then the value of K is
If one zero of the quadratic polynomial kx2+3x+k is 2 then the value of k is. Solution : x = 2 satisfies ks2+3x+k=. ∴4k+6+k=0⇒5k=-6⇒k=-65.
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