Answers edited by Tiago Hands

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• How do you write 0.0064 as a fraction?
  
• How do you differentiate #f(x)=(1+tan^2x)/secx#?
  
• What is the derivative of #tan^-1(x^2 y^5)#?
  
• What is the derivative of #(arcsin(3x))/x#?
  
• What is the difference in strength between the four fundamental forces?
  
• What is the derivative of #ln(x/2)#?
  
• Just how big is the Universe?
  
• How do you find the exact value of the trigonometric function cos 570 degrees?
  
• How do you find the derivative of # f(x)= 2/(1+x^2) #?
  
• How does gravity affect a star's life cycle?
  
• How do you prove # [1 - cos(x)]/[sin(x)] = tan(x/2)#?
  
• How do you find the second derivative of # ln(x/(x^2+1))# ?
  
• How do you find the derivative of #x^3*arctan(7x)#?
  
• What is the derivative of #f(x)= 5 secx tanx#?
  
• What is the derivative of #y= ln(1-x^2)^(1/2)#?
  
• How do you prove #tan^2x/(Secx+1)+1 = secx#?
  
• How do you graph #y = (1/2)sin(x - pi)#?
  
• How do you convert -15 degrees to radians?
  
• How do you find the derivative using quotient rule and chain rule for #1/sqrt(1-x^2)#?
  
• How do you prove #((1+cosx) / sinx) + (sinx / (1 + cosx)) = 2 csc x#?
  
• Question #1e174
  
• How do you simplify #\log_{5} ( b^{2} a^{8} )#?
  
• What is the derivative of #y=ln(sec(x)+tan(x))#?
  
• What electric charge does a neutron have?
  
• What is the derivative of # ln(3x)#?
  
• How do you prove #(cos^2x) / (sin^2x) * (1) / cos^2x = csc^2x#?
  
• How do you solve #lnx+ln(x+4)=ln5#?
  
• What is the derivative of #4 / (x+3)#?