@rkshtsurana said:@Anivesh90@vikky312@sauravd2001sab sahi.....my approach..seedha graph bana lo ..sin x and x^2 + x+ 1..no intersection
whi kiya...
@rkshtsurana bhai enginer hue yeh sine cos ke sath toh shaadi kar rakhi hai humne toh dekh maine kya kiya
sin 0= 0^0+0+1 yeh hua rhs =1 aur sin 0 hua 0 yeh nai hua match
agla dekh
sin 1 =1^2+1+1
yeh hua rhs equal to 3 aur 1 se age badte hi yeh hua sab kuch false aur ab negative ke liye bhi same rahega yeh sab
@rkshtsurana said:@Anivesh90@vikky312@sauravd2001sab sahi.....my approach..seedha graph bana lo ..sin x and x^2 + x+ 1..no intersection
graph is the best method in these type of questions...... intersection points check karne hain bas....
no solution dats y
no solution dats y
@rkshtsurana said:@Anivesh90@vikky312@sauravd2001sab sahi.....my approach..seedha graph bana lo ..sin x and x^2 + x+ 1..no intersection
Yaar my approach was -->
sinx-x2-x-1 wont result to 0 in any case, so no soln..is this approach correct?
(graphs are not my thing, working on that..)
@techsurge said:9*10^6 *55 because last digit can be even or odd depending on previous terms, if the sum of digits is odd before last place use 1,3,5,7,9 else 2,4,6,8,0
elegant.. Kudos..
Sup 😁
@kinkong bhai sorry yaar galat ho gaya lekin jo maine kiya woh maine bahut soch ke kiya tha par nai aya toh m sorry
@sauravd2001 cmon yaar.... i m proud of u...tum sab ki help karte ho...especially hamare jaise bando ki jinko abc nahi aata quants mai!!!!
player hit 6 sixes in a match an commentator says player hit 210 runs. hearing this another commentator get shocked and asks which number system did u use??
answere is 4...tel the approach
A doctor has to describe 2 new drugs to 200 patients, such that 50 get drug D1 and 50 get drug D2 and 100 get both. The patients are chosen cuh that probability if these patients are not given any of the drug, then they have 80% chances of heart attack. Drug D1 reduces probability of heart attack by 35 % while Drug D2 reduces probability of heart attack by 20 %. The two drugs when taken together work independently. If a patient is selected randomly from 200 patients, had a heart attack,what is the probability he is administered both the drugs
a) 0.42
b) 0.49
c) 0.56
d) 0.40
@sauravd2001 said:player hit 6 sixes in a match an commentator says player hit 210 runs. hearing this another commentator get shocked and asks which number system did u use??answere is 4...tel the approach
6 x 6 = 36 runs
210 in n base
2n^2 + n = 36
n = 4
@sauravd2001 said:player hit 6 sixes in a match an commentator says player hit 210 runs. hearing this another commentator get shocked and asks which number system did u use??answere is 4...tel the approach
6 sixes is= 36
210 means base has to be >=3, Check for 3 u wont get 210, Next check for 4 u get 210. Bingo
210 means base has to be >=3, Check for 3 u wont get 210, Next check for 4 u get 210. Bingo
In a list of 7 integers, one integer denoted as 'x' is unknown. The other 6 are 20,4,10,4,8, and 4. If the mean, median and mode of these seven integers are arranged in increasing order, they form an AP. The sum of all possible values of x is:
26
32
34
38
40
@sauravd2001 said:player hit 6 sixes in a match an commentator says player hit 210 runs. hearing this another commentator get shocked and asks which number system did u use??answere is 4...tel the approach
210 =2*n^2 +n =36
2n^2+n-36=0
n=4 satisfies this
better if option was given , else would have to solve quadratic in n
f(x+y) = f(x)*f(y) V x , y
f(0) = 1 ; f(4) = 1 ; f(14) is not equal to 1
f(414) = ?
@Messy_19 said:In a list of 7 integers, one integer denoted as 'x' is unknown. The other 6 are 20,4,10,4,8, and 4. If the mean, median and mode of these seven integers are arranged in increasing order, they form an AP. The sum of all possible values of x is:2632343840
getting two values, 6 and 34
OA -> 40??
@Messy_19 said:In a list of 7 integers, one integer denoted as 'x' is unknown. The other 6 are 20,4,10,4,8, and 4. If the mean, median and mode of these seven integers are arranged in increasing order, they form an AP. The sum of all possible values of x is:2632343840
40
getting 6 and 34
2 aps 4,6,8 and 4,8,12