List questions from problem-solving

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List Question

Normal distribution - how to solve P(-b<X<b)=0.95

Mgf of double exponential RV

If $9\sin\theta+40\cos\theta=41$ then prove that $41\cos\theta=40$.

$y = \ln(p+qe^x)/x$, solve for $x$

How to solve trigonometric equations with a domain involving negative values of $x$?

Is there a solution to the equation x^x^x^x^x^x^... = 2?

Number of unique Team parings given 10 players and 2 teams

Efficient method to calculate passes (rises and sets) for satellites

Simple probabilistic expression

Possible values of $\gcd(a+b, a\times b)$

Fundamental Matrix

Finding the roots of a quartic

Question about "linear programming problem" in reference to joint pmf

Find a seven digit number which describes itself

Solve equation with two unknowns (maybe modulo)

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