Answers created by Hugge

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• Differentiate from the first principle x^2sin(x)?
  
• Find a vector function, #r(t)#, that represents the curve of intersection of the two surfaces. The cylinder #x^2 + y^2 = 81# and the surface #z = xy#?
  
• For what values of x is dy/dx zero and undefined?
  
• Question #69feb
  
• Question #20c50
  
• Question #30ca9
  
• Question #ca9fe
  
• What is the range of the function f(x)= 1 / ( 4 sin(x) + 2 ) ?
  
• How do you find the domain and range of #f(x) = 6/(x-4)#?
  
• Question #fb316
  
• How do you find the exact value of #sin((7pi)/6)-sin(pi/3) #?
  
• How do you use the half-angle identity to find the exact value of cos(17π/12)?
  
• Question #53368
  
• If the average of 18 consecutive odd integers is 534, what is the least of these integers?
  
• You have #n# pieces of pie to be given out to #k# people, and all #n# pieces are given out. How do you find a formula for the total number of ways to give out pie?
  
• How to find frequency of rotational motion without knowing radius?
  
• How are positrons and electrons similar?
  
• The mean number of seeds in a watermelon is 176 and the standard deviation is 40. What percentage of melons have less than 100 or greater than 225 seeds?
  
• How do you find the slope of the secant lines of #y=2x^2+sec(x)# at #x=0# and #x= pi?#
  
• Question #de09a
  
• Question #730a0
  
• What is the equation of the normal line of #f(x)=(x-3)/(x+4)# at #x=3#?