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Answers by Anand Vijayan

0 votes
1
ISI 2004 MIII
A subset $S$ of set of numbers $\{2,3,4,5,6,7,8,9,10\}$ is said to be good if has exactly $4$ elements and their $gcd=1$, Then number of good subset is $126$ $125$ $123$ $121$
A subset $S$ of set of numbers $\{2,3,4,5,6,7,8,9,10\}$ is said to be good if has exactly $4$ elements and their $gcd=1$, Then number of good subset is$126$$125$$123$$121...
5 votes
4
GATE2013 AE: GA-2
The Headmaster ___________ to speak to you. Which of the following options is incorrect to complete the above sentence? is wanting wants want was wanting
The Headmaster ___________ to speak to you. Which of the following options is incorrect to complete the above sentence? is wanting wants want was wanting
5 votes
6
ISI 2015 PCB A2
Find all real solutions of the equation $x^{2} - |x-1| - 3 = 0$
Find all real solutions of the equation $x^{2} - |x-1| - 3 = 0$
0 votes
7
GATE2014 AE: GA-6
Find the odd one in the following group: $\text{ALRVX, EPVZB, ITZDF,OYEIK}$ $\text{ALRVX}$ $\text{EPVZB}$ $\text{ITZDF}$ $\text{OYEIK}$
Find the odd one in the following group: $\text{ALRVX, EPVZB, ITZDF,OYEIK}$$\text{ALRVX}$$\text{EPVZB}$$\text{ITZDF}$$\text{OYEIK}$
0 votes
8
minimum value
If $a, b, c, d$ and $e$ are positive real numbers, then the minimum value of $(a+b+c+d+e)(\frac{1}{a}+\frac{1}{b}+\frac{1}{c}+\frac{1}{d}+\frac{1}{e})$ is $25$ $5$ $125$ Cannot be determined.
If $a, b, c, d$ and $e$ are positive real numbers, then the minimum value of $(a+b+c+d+e)(\frac{1}{a}+\frac{1}{b}+\frac{1}{c}+\frac{1}{d}+\frac{1}{e})$ is$25$$5$$125$Cann...
0 votes
9
Discrete Math
Prove or disprove the following: for finite sets A and B, $\overline{(A - B) \cup (B - A)} = A \cap B$ . If the proposition is incorrect, do minimal modifications to the same and prove.
Prove or disprove the following: for finite sets A and B, $\overline{(A - B) \cup (B - A)} = A \cap B$ . If the proposition is incorrect, do minimal modifications to the ...
1 votes
11
testbook test series
What is the variance of random variable X whose value when two fair dice are rolled is X((i,j)) = i + j , where i and j are the numbers appearing on the first and second die respectively ? a) 35/6 b) 49/4 c) 91/6 d) 35/12
What is the variance of random variable X whose value when two fair dice are rolled is X((i,j)) = i + j , where i and j are the numbers appearing on the first and second ...