Answers edited by Olivier B.

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• How do you find tan x/2 ; given #sin x= 3/5#, with# 90<x<180#?
  
• Question #f472a
  
• How do you use the second derivative test to find the relative maxima and minima of the given #f(x)= x^4 - (2x^2) + 3#?
  
• How do you simplify #(sqrt5)^6#?
  
• How do you differentiate #y = (x + 7)^10 (x^2 + 2)^7#?
  
• How do you calculate #log_4 43# with a calculator?
  
• How do you factor a perfect square trinomial #36b^2 − 24b + 16#?