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M.Riyan

Member for 5 years, 6 months
Last seen this week

darkcalculator.com
Dhaka, Bangladesh

Summary

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1,325

1.7k
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45

Jun
Jul
Aug
Sep

Top tag

algebra-precalculus

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2,000 Rep.

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7

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4/5

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56

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222

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Answers

View all 46 answers

6

Evaluating $ \int\frac{\sqrt{1-x^2}-x}{\sqrt{1-x^2}(1+x\sqrt{1-x^2})}\, dx $

Aug 20

5

Show that $a^2 + b^2 =1$, $c^2 +d^2 = 1$, and $ac +bd = 0$ implies $a^2 + c^2 = 1$, $b^2+d^2=1$, and $ab+cd = 0$.

Aug 1

5

Let $\alpha$ and $\beta$ be roots of the equation $ax^2+bx+c=0$ and find the roots of the equation $a(x+1)^2+b(x+1)(x-2)+c(x-2)^2 = 0$.

Aug 14

4

Total number of $4$ digit number formed by $0,2,3,4,6,7$

Aug 19

4

General equation to calculate time required to travel a distance given initial speed and constant acceleration

Aug 19

Questions

3

Convergence of a sum as limit tends to infinity that seems to be harmonic series

Jan 13

3

Create a matrix that has a definite determinant

Jul 10

1

A mathematical problem to find the length of a line segment

May 29

1

Convergence of a product as limit tends to infinity

Jan 10

-2

Find $(a-b)^3+(b-c)^3+(c-a)^3$ from $a+b+c=6$, $ab+bc+ca=11$ and $abc=6$

Jul 28

Tags

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algebra-precalculus

17

Score

10

posts

calculus

16

Score

7

posts

integration

15

Score

8

posts

indefinite-integrals

13

Score

4

posts

quadratics

9

Score

3

posts

Reputation

+25

Evaluating $ \int\frac{\sqrt{1-x^2}-x}{\sqrt{1-x^2}(1+x\sqrt{1-x^2})}\, dx $

+15

Indefinite Integral of $\int\sec^{4/3} x dx$

+10

Calculate length of line drawn from major radius of ellipse that is parallel to another line on major radius

+2

System of trigonometric eqs: $a\cos(\phi_1) + b\cos(\phi_2) = A$ and $a\sin(\phi_1) + b\sin(\phi_2) = B$

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136

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this month