Let A(t) = 3- 2t^2 + 4^t. Find A(2) - A(1).
The function f(x) satisfies f(sqrt(x+1)) = 1/x for all x ≥ 1, x≠0. Find f(2)
Let f(x) = (3x-7)/(x+1). Find the domain and range of f. Give both anwsers as intervals.
+118608 \(Let A(t) = 3- 2t^2 + 4^t. Find A(2) - A(1).\\ A(2)-A(1)=3-2*4+4^2-(3-2*1+4)\\ A(2)-A(1)=3-8+16-(3-2+4)\\ A(2)-A(1)=11-(5)\\ A(2)-A(1)=6\\\)
\(\mbox{The function f(x) satisfies } f(\sqrt{x+1}) = \frac{1}{x}\quad for \;\;all \;\;x ≥ 1, \;\;x≠0. \quad Find \;\;f(2)\\ \sqrt{x+1}=2\\ x+1=4\\ x=3\\~\\ f(2)=\frac{1}{3}\)
next time please just ask one question per post. :)
