Given that cot θ = 1/√5, what is the value of (sec²θ - cosec²θ)/(sec²θ + cosec²θ) ? (a) 2/3
(b) 3/2
(c) 25/36
(d) 12/13

Nine more than four times a number is the same as one less than twice the number. find the number?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Can someone me out here and the tell me the greatest common factor