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Maharnab Naha
  • Member for 6 years, 5 months
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5 votes

If $A$ and $B$ are matrices such that $AB^2=BA$ and $A^4=I$ then find $B^{16}$.

3 votes
Accepted

Incorrect equation

3 votes

Tax rate question

2 votes
Accepted

Find the common difference

1 vote

Prove $3+ 5 \sqrt {2}$ is irrational

1 vote

I think there is an error in this solution

1 vote

for triamgle $ABC$ prove that $\frac{a}{b+c}+\frac{b}{c+a}+\frac{c}{a+b} <2$

1 vote
Accepted

Simplifying radical expression $\sqrt[4]{3x}\cdot\sqrt{y+4}$

1 vote

how to find the limit of $\lim_{x \to0}\frac{\sqrt{x^2+x+1}-\sqrt{x+1}}{x^2}$

1 vote

Prove $ P(A-B)=P(A)-P(A\cap B) $

1 vote

Is it possible to solve $\sin(\alpha)$ from right triangle when one side $\sqrt{5-x^2}$, second side $x$, hypotenuse unknown?

1 vote
Accepted

Solving $\tan\frac3{9.8m}\tan\frac4{9.8m}=1$ for $m$

0 votes

Area of Trapezoid Does Not Equal Sum of Constituent Triangles

0 votes
Accepted

Prove that $0$ divides $a$ if and only if $a = 0$

0 votes

Find the area of the shaded region $DFEB$

0 votes

How many different arrangements are possible if $3$ letters are randomly selected from the word CHALLENGE and arranged into ‘words’?

0 votes

Intersection of the two planes

0 votes

Sum of sides in a Cuboid

0 votes

Pre- calculus and calculus practice questions

0 votes

Finding the angle between the lines represented by $9x^2+24xy+16y^2=0$

0 votes

Geometry, which figures are possible?

0 votes

Right angled triangles with integer areas.

0 votes

How can I prove that DEF is an equilateral triangle?

0 votes

Simplifying $27^\frac23$ without a calculator

0 votes

${\sqrt{2x+1}=1+\sqrt{x}}$ — I dont know if the solution is correct. Help?

0 votes

How to work out the age of X person when the mean age of Y amount of people is given

0 votes
Accepted

Given $a+b=x$ ,and $a-b=y$.Prove that $x^{2}+y^{2}=2(a^{2}+b^{2})$

0 votes

$\frac ab<\frac cd<\frac ef$ ($a,b,c,d,e,f\in\Bbb N$); $af-be=-1$; show that $d\ge b+f$

0 votes

Expressing $2\cos^2x+\sin^2x$ in terms of $\cos2x$

0 votes
Accepted

finding solution in real numbers, two variables