Diyadiya
 Name:
 ~d^_^b~
 School:
 Hogwarts School of Witchcraft and Wizardry
 About:
 ^^ :)
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Questions Asked

Diyadiya:
Group Title
Question Attached!
 updated 2 years ago
 51 replies
 5 Medals
Mathematics

Diyadiya:
Group Title
If 4 squares are chosen at random on a chessboard (there are 64 squares arranged in 8 rows and 8 columns in a chessboard), then the probabil…
 updated 2 years ago
 22 replies
 3 Medals
Mathematics

Diyadiya:
Group Title
Martin throws two dice simultaneously. If the sum of the outcomes is 12, he oﬀers lunch at a ﬁve star hotel with probability 2/3. If the sum…
 updated 2 years ago
 24 replies
 5 Medals
Mathematics

Diyadiya:
Group Title
1. Given 5 people. a) 3 people are selected randomly, how many possible combination? (b) 3 people are selected randomly to form leader team …
 updated 2 years ago
 24 replies
 3 Medals
Mathematics

Diyadiya:
Group Title
With what minimum acceleration can a fireman slide down a rope whose breaking strength is 3/4th of his weight?
 updated 2 years ago
 49 replies
 4 Medals
Mathematics

Diyadiya:
Group Title
A 5kg stone falls from a height of 100m and penetrates 2m in a layer of sand. The time of penetration is ?
 updated 2 years ago
 56 replies
 6 Medals
Mathematics

Diyadiya:
Group Title
Show that f is a Function and g is not a function
 updated 2 years ago
 18 replies
 3 Medals
Mathematics

Diyadiya:
Group Title
Let \[f=\left\{ x, \frac{x^2}{1+x^2}:x \in R \right\}\] be a function from R into R .Determine the range of f .
 updated 2 years ago
 3 replies
 4 Medals
Mathematics

Diyadiya:
Group Title
Find the Domain and range of real function f defined by \[\ f(x)=\sqrt{(x1)}\]
 updated 2 years ago
 2 replies
 2 Medals
Mathematics

Diyadiya:
Group Title
The metallic lustre exhibited by sodium is explained by
(A) Diffusion of sodium ions
…
 updated 2 years ago
 4 replies
 3 Medals
Mathematics

Diyadiya:
Group Title
Elements while forming compounds become stable by
A.increasing the energy content
B.Decreasing energy content…
 updated 2 years ago
 3 replies
 2 Medals
Mathematics

Diyadiya:
Group Title
if in an A.P 3rd term is 18 and 17th term is 30. Sum of its 17 terms is:
(I'm not getting the right answer)
 updated 2 years ago
 10 replies
 6 Medals
Mathematics

Diyadiya:
Group Title
Let \( S_n\) denotes the sum of first n terms of an AP. If \(S_{2n}= 3S_n\) then the ratio is equal to :
 updated 2 years ago
 9 replies
 3 Medals
Mathematics

Diyadiya:
Group Title
In an AP ,the sum of term equidistant from the beginning and end is equal to
A.First term
B.Second term
…
 updated 2 years ago
 3 replies
 2 Medals
Mathematics

Diyadiya:
Group Title
whats the angle b/w instantaneous displacement and acceleration during the related motion?
…
 updated 2 years ago
 19 replies
 5 Medals
Mathematics

Diyadiya:
Group Title
Question:
 updated 2 years ago
 62 replies
 6 Medals
Mathematics

Diyadiya:
Group Title
If \[\frac{3+5+7+...+n}{5+8+11+...+10terms}=7\] the value of n is :
 updated 2 years ago
 3 replies
 7 Medals
Mathematics

Diyadiya:
Group Title
If the roots of \(ax^2+bx+c=0\) are in the ratio m:n then
A.\(mna^2=(m+n)c^2\)
B.\(mnb^2=(m+n)ac\)
…
 updated 2 years ago
 16 replies
 6 Medals
Mathematics

Diyadiya:
Group Title
If the equation \(x^2+ax+b=0\) & \(x^2+bx+a=0\) have common root then the numerical value of a+b is
 updated 2 years ago
 9 replies
 3 Medals
Mathematics

Diyadiya:
Group Title
If \( a(p+q)^2+2bpq+c=0\) and \(a(p+r)^2+2bpr+c=0\) then qr = ?
 updated 2 years ago
 21 replies
 6 Medals
Mathematics

Diyadiya:
Group Title
Roots of the quadratic equation \( (a+b2c)x^2(2ab+c)x + (a2b+c) =0 \) are :
 updated 2 years ago
 10 replies
 3 Medals
Mathematics

Diyadiya:
Group Title
If α≠β but \(α^2=5α−3\) ,\(β^2=5β−3\), then the equation whose roots are \(\frac{\alpha}{\beta}\) and \(\frac{\beta}{\alpha}\)
 updated 2 years ago
 25 replies
 3 Medals
Mathematics

Diyadiya:
Group Title
Two candidates attempts to solve a quadratic equation of form \(x^2+px+q=0\) One starts with a wrong value of p and find the roots to be 2 a…
 updated 2 years ago
 13 replies
 9 Medals
Mathematics

Diyadiya:
Group Title
Let R be a reflexive relation on a finite set A having nelements and there be mordered pairs in R. then
A.\(m \geq n\)
B.\(m \leq n\)
…
 updated 3 years ago
 5 replies
 6 Medals
Mathematics

Diyadiya:
Group Title
If \(\alpha , \beta \) are the roots of \(ax^22bx+c=0\) then\(\alpha^3\beta^3+\alpha^2\beta^3+\alpha^3\beta^2\) is :
 updated 3 years ago
 2 replies
 4 Medals
Mathematics

Diyadiya:
Group Title
Function \[f(x)= \frac{\sin^4x+\cos^4x}{x+x^tanx} \] is
A.Even
B.Odd…
 updated 3 years ago
 24 replies
 5 Medals
Mathematics

Diyadiya:
Group Title
The function f(x)=cosx is periodic with period :
…
 updated 3 years ago
 16 replies
 6 Medals
Mathematics

Diyadiya:
Group Title
Let A be the nonvoid set of the children in the family. The Relation 'x' is a brother of 'y' on A is
A.Reflexive
B.Symmetric
…
 updated 3 years ago
 14 replies
 6 Medals
Mathematics

Diyadiya:
Group Title
Let f:R>R be a function defined by f(x) \[f(x)= \frac{x^3+x}{1+x^2} \] then the graph lies in the
A.1st & 2nd Quadrant
B.1st & 3rd Qu…
 updated 3 years ago
 10 replies
 5 Medals
Mathematics

Diyadiya:
Group Title
Two points P and Q in a plane are related if OP=OQ, where O is a fixed point, This relation is
A.Partial order relation
B.Equivalence rela…
 updated 3 years ago
 19 replies
 3 Medals
Mathematics

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