Question

If x+1/x= 2cosø then show that x²+1/x²= 2cos2ø​

Answer 1

ason for her since she was so young he is a lot ason for her since she was so young he is a lot of fun to be honest and not be able and not be in a ason for her since she was so young he is a lot of fun to be honest and not be able and not be in a ason for her since she was so young he is a lot of fun to be honest and not be able and not be in a