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IMPORTANT
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In the expansion of 1+x70 the sum of the coefficients of odd powers of x is

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Important Questions on Binomial Theorem

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JEE Main
IMPORTANT
The sum of all the coefficients of the terms in the expansion of (x+y+z+w)6 which contains x but not y, is
MEDIUM
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IMPORTANT
The value of C212+13C3+14C4++999C989 is
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IMPORTANT
If 1+x+x225=a0+a1x+a2x2+...+a50x50, then a0+a2+a4+...+a50 is
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IMPORTANT

If the sum of the coefficients in the expansion of q+r201+p-2x20 is equal to square of the sum of coefficients in the expansion of 2rqx-r+q.y10, where p, q, r are positive constants, then:

MEDIUM
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IMPORTANT
The sum Sn=Σk=0n-1k·3nCk, where n=1, 2,.... is
HARD
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IMPORTANT
If 1+1+x+1+x2++1+xn=k=0nakxk, then which of the following is not true?
MEDIUM
JEE Main
IMPORTANT
Given C18x1-x7+2·C28x21-x6+3·8C3x31-x5++8·x8=ax+b, then a+b is
HARD
JEE Main
IMPORTANT
The value of  9950-991·9850+99·981·2·9750-...-99·981.2·250+991·150 is