user avatar
user avatar
user avatar
Tariro Manyika
  • Member for 3 years, 7 months
  • Last seen more than a week ago
5 votes
0 answers
501 views

Find an implicit solution to $y ^ { \prime } ( x ) = \frac { x ^ { 3 } } { 2 y \sqrt { 1 + y ^ { 2 } } }$

3 votes
1 answer
152 views

$f : S \rightarrow S$ is called cool, if for all elements $x$ of $S ,$ $f ( f ( f ( x ) ) ) = x$

1 vote
0 answers
48 views

Two Equations and Two Unknowns

1 vote
4 answers
72 views

Differentiate $f ( x ) = \frac { \ln \left( x ^ { 2 } \cos ( x ) \right) } { \sqrt { 1 - x ^ { 2 } } }$

1 vote
1 answer
354 views

Show that the number of sequences of length 40 are there using the alphabet {a,b,c,d}

0 votes
0 answers
31 views

Green's function for $-\Delta$ on the plane is $-\frac{1}{2\pi}\ln\lVert x-y \rVert$

0 votes
1 answer
29 views

If f is thrice continuously differentiatable ( f is in $C^{3}$) and its third derivative is bounded, then show that

0 votes
1 answer
31 views

Predicting future values or modeling data

0 votes
2 answers
72 views

if a, b, c, k ∈ R , Compute the following limit

0 votes
4 answers
71 views

Matrix proof $A ^ { - 1 } \mathrm { x } = \frac { 1 } { \lambda } \mathrm { x }$

0 votes
2 answers
34 views

Use row reduction to show that A is non-singular if and only if $a \neq 0$ and $c \neq 0$ and $f \neq 0$.

0 votes
0 answers
93 views

we consider strings of characters, where each character is an element of {a, b, c}. Such a string is called awesome

0 votes
0 answers
29 views

Prove the formula using "complete induction"

0 votes
0 answers
32 views

probability given standard deviation and mean using excel norm.dist function

0 votes
1 answer
16 views

$Y = \frac { K A ^ { 3 } } { ( B + D ) ( C - D ) }$

0 votes
1 answer
738 views

An urn contains 2 red balls and 3 blue balls.

0 votes
1 answer
35 views

Write $5 \cos \theta+(75)^{1 / 2} \sin \theta$ in the form $R\sin(\theta+\varepsilon)$, $R>0$

0 votes
0 answers
43 views

For arbitrary positive integral $n,$ find the sum $2^{n}+2^{n-1}+2^{n-2}+\ldots+2^{-n+1}+2^{-n}$

0 votes
1 answer
467 views

1.a) A plane $S_{1}$ contains the three points $(1,0,0),(0,1,0)$ and $(0,0,1) .$ Find an equation for $S_{1}$

0 votes
0 answers
26 views

Does the law of large numbers contradict independent probability (when rolling a dice lets say)

0 votes
0 answers
48 views

$\operatorname{Pr}(A \cap B | C)=\operatorname{Pr}(A | C) \cdot \operatorname{Pr}(B | C)$

0 votes
1 answer
96 views

Adding decreasing power of the same number

0 votes
1 answer
51 views

Inverse function $f(x) = 3^x$