A query that has been niggling since quite some time.
How to create a formula for sigma (summation) for a series as this:
1+3+6+10+15+... ? Please help. TIA.
If medians PT and RS of a triangle with P(0,b) , Q(0,0) , R(a,0) are perpendicular to each other,which of the following satisfies relation b/w a and b ?
1) 4b^2 = a^2
2) 2b^2 = a^2
3) a^2 +b^2 = 0
A+B+C=10 find max value of A^2*B^3+B^3*C^5+A^3*C^2.. @mak1901 @anandmadhav @Ankurk14 isko kaise karenge?
Inverse of f(x) =(10^t - 10^-t)/(10^t+10^-t) is
1. 1/2log[(1-t)/(1+t)]
2. 0.5log[(t-1)/(t+1)]
3. 1/2log10(2^t-1)
4. none
X and Y are playing a game. There are 11 50 paise coins on the table and each player must pick up atleast one coin but not more than five. The person picking up the last coin losses. X starts. How many coins should he pick up at the start to ensure a win no matter what strategy y employs.
plss explain the approch to deal with these type of qstions ..
No of digits and after decimal zeroes in (.02)^50. log 2 =.3010
Two horses are tied to opposite vertices of a rectangular field of length and breadth 6 and 6sqrt2 meters. If they are tied with rope of length 6 meters, what is the common area that both horses can graze?
A. 6pi - 9sqrt3
B. 12pi- 18sqrt3
C. pi - 2sqrt3
D. 16pi-8sqrt3
E. Cannot be calculated
Post solution yaar
11,60 and n are the lengths of the sides of a triangle. all are integers. for how many values of n is the triangle acute angled?
Pfa
How many unordered triplets a*b*c=360 possible where a,b and c are distinct ?
Approach pls!!
Two arguments are given and your task is to find which of the argument is valid. A valid argument is that in which the third sentence is a logical deduction from the first two sentences.
I. No introverts are socialites. All who are not introverts are extroverts. So, all socialites are extroverts.
II. No Introverts are socialites. All socialites are extroverts. So, no introvert is an extrovert.
which one is true?
Pls post approach as well.
The SBI lent rs.1331 to the Tata grp at a compound interest and got rs.1728 after 3 yrs. What is the rate of interest charged if the interest is compounded annually?
a 120 digit no formed by writing first x natural nos in front of each other as 1234........find the remainder wen this no is divided by 8?
A and B work on alternate days , if A start the work they finish it in 19 days , if B start the work they finish it in 19+2/5 days. Find no. of days they will take by working together.
If 3x+4y+5z=20 then maximum possible value of x^2*y^2*z?(x,y,z >0)
Pls mention the best approach..!
- 4^5
- 450
- 4^5/45
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highest power of 2 in 200C100?
for n=1 to infinity, sum of 1/n^2 =pi^2/6 , find the sum of for n=1 to infinity 1/(2n+1)^2
- pi^/12
- 12pi
- pi^/24
- pi^/8
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