1
JEE Main 2020 (Online) 9th January Evening Slot
Numerical
+4
-0
Out of Syllabus
Change Language
If Cr $$ \equiv $$ 25Cr and
C0 + 5.C1 + 9.C2 + .... + (101).C25 = 225.k, then k is equal to _____.
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2
JEE Main 2020 (Online) 9th January Morning Slot
Numerical
+4
-0
Change Language
The coefficient of x4 is the expansion of (1 + x + x2)10 is _____.
Your input ____
3
JEE Main 2020 (Online) 7th January Morning Slot
Numerical
+4
-0
Out of Syllabus
Change Language
If the sum of the coefficients of all even powers of x in the product
(1 + x + x2 + ....+ x2n)(1 - x + x2 - x3 + ...... + x2n) is 61, then n is equal to _______.
Your input ____
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