Calculate the smallest angle in a triangle with side lengths 7 cm, 8 cm and 9 cm. A. 35∘ 20′ B. 58∘41′ C. 60∘ D. 48∘19′ do i need Trigonometric ratios table?

Write down the set of distinct solutions and prove your list is complete. $x$ and $y$ are positive integers. I have rewritten it as $\frac{(x+y)}{xy} = \f...

I am following Nocedal and Wright's Numerical Optimization book for self study. In the Appendix section of the book, the following matrix norms are d...

Find the Cartesian equation for the perpendicular bisector of the line joining A(2,3) and B(0,6) How do I do this? Thank you!

So here is Question :- A triangular grid of side $n$ is formed from $n^2$ equilateral triangles with sides of length $1$.Determine the number of parallell...

Find the angles of an inscribed trapezoid (in a circle) $ABCD$ ($AB||CD$) if $\angle ABD = 63^\circ$. Any trapezium in a circle is an isosceles trapezium,...

It's unusual that I have to ask for a definition on this site, but it in the context of spin structures, it seems common to talk about double covers ...

Suppose we have a stochastic process which is written as an Ito process. $$dX_t=\mu_t\ dt +\sigma_t\ dB_t$$. If $Y_t$ is defined as a stochastic process a...

You set the following exercise to your calculus class: Q1. Differentiate $y(x) = x^x$. A student submits the following solution: Let $g(a)=a^x$ and $f(x)=...

These concepts are currently confusing me. My reading first defined a normal subgroup as one that is the kernel of a group homomorphism. Then it introduce...