Sunday, 8 August 2021

Let x,y,z and w represent four distinct positive integers such that x2−y2=z2−w2=81. Find the value of xz+yw+xw+yz.
at
Labels: , , , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Define f:R→R by \[f(x)= \begin{cases}(1-\cos x) \sin \left(\frac{1}{x}\right), & x \neq 0 \ 0, ...