SOLUTION: please help me solve this problem: write the expression {{{ sqrt(x^2 + 4)}}} in terms of theta when x = 2tan theta I remember my teacher telling me to act as though what x equa

Algebra ->  Trigonometry-basics -> SOLUTION: please help me solve this problem: write the expression {{{ sqrt(x^2 + 4)}}} in terms of theta when x = 2tan theta I remember my teacher telling me to act as though what x equa      Log On


   



Question 773187: please help me solve this problem:
write the expression +sqrt%28x%5E2+%2B+4%29 in terms of theta when x = 2tan theta
I remember my teacher telling me to act as though what x equals was simply the first number, in this case 2...so would it be correct for me to assume the correct answer would be
{{ sqrt(2^2 + 4) which would be sqrt%284tantheata+%2B+4%29...??
thank you in advance for your help(:

Answer by jim_thompson5910(35256) About Me  (Show Source):