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NDA PREVIOUS YEARS-QUESTION PAPER 2021(I)-MULTIPLE CHOICE QUESTION
- f log(10) 2, log(10)(2^(x) -1) , log(10)(2^(x)+3) are in AP, then wha...
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- Let S = {2, 3, 4, 5, 6, 7, 9}. How many different 3-digit numbers (wit...
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- If p= (1111... up to n digits), then what is the value of 9p^2 + p ?
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- The quadratic equation 3x^2 - (k^2 + 5k) x + 3k^2 - 5k = 0 has real...
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- If a(n) = n(n!) , then what is a1 +a2 +a3 +......+ a(10) equal to ?
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- If p and q are the non-zero roots of the equation x^2 + px + q = 0, t...
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- If Delta=|(a,b,c),(d,e,f),(g,h,i)| then what is |(3d+5g ,4a+7g,6g...
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- If (1)/(b+c),1/(c+a),1/(a+b) are are in HP, then which of the followin...
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- If A=[(1,a),(0,1)] where a in N , then what is A^(100) - A^(50)-2A^(2...
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- If |(a,-b,a-b-c),(-a,b,-a+b-c),(-a,-b,-a-b+c)| - kabc = 0 (a != 0, b !...
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- What is sum(r = 1)^(8n + 7)i^(r) equal to where i = sqrt(-1) ?
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- If z = x + iy where i = sqrt(-1) , then what does the equation zbarz ...
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- Which one of the following is a square root of 2a+2sqrt(a^2+b^2) , w...
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- If sintheta and costheta are the roots of the equationax^(2)-bx+c=0 ,...
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- If C (n, 4), C (n, 5) and C (n, 6) are in AP, then what is the value ...
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- How many 4-letter words (with or without meaning) containing two vowe...
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- Suppose 20 distinct points are placed randomly on a circle. Which of t...
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- How many terms are there in the expansion of ((a^2)/(b^2) + (b^2)/(a^2...
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- For what values of k is the system of equations 2k^2x + 3y - 1 = 0, ...
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- The inverse of a matrix A is given by [(-2,1),(3/2, -1/2)] What is A e...
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