Questions asked by Just a.

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• Log2(x+1)=log4(x^2-x+4) What is the value of x?
  
• #log_2(x+1)=log_4(x^2-x+4)# What is the value of x?
  
• #x^2+x(4^x-14)+4^(x+1)-72=0# The value of x?
  
• #limxrarra (x^2-a^2)/(sqrtx-sqrta)=32# What value should "a" have?
  
• #f(x)= |x-1|/e^x# Study the derivability for #f(x)# in #x_"0"=1# . What is the derivate for #f'(1)#?
  
• What is the derivate for #2013root2013x# ?
  
• #P=(C_2^1*C_4^2*C_6^3*...*C_2014^1007)/(C_1^1*C_3^2*C_5^3*...*C_2013^1007)# What is the value of P?
  
• #f=(x-2014)^2014+3x+12# The remainder for #f:(x-1)# is?
  
• #x,y,z=?# #-x+y+z=0# #6+6x+6z=0# #24+4y+4y-6z=0#
  
• An astronaut moves on a circular orbit around the earth.what is the average speed for a whole revolution?
  
• What's the fourier series for the function #f(x)= {2 , (0, Pi) and -2 , (-Pi ,0)} # ?
  
• What's the value of the integral? # intintint_omega(sqrt(1-x^2-4y^2-9z^3)dxdydz) Omega:{ x^2+4y^2+9z^3<=1; x,y,z>=0}#
  
• What's the value of the limit? # lim_(x->oo) (2*e^3/(e^2+1))^(1/x) #