Answers created by Parth K.

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• If #tan(pi/2sintheta) = cot(pi/2costheta)# then sum of all possible values of #sintheta + costheta# equal to?
  
• Topic:half-life decay 2.80moles of a radioactive element was originally present in a given sample of compound.if after 45.6moles of it remain,find the half life of this element?
  
• A container has a volume of #14 L# and holds #9 mol# of gas. If the container is compressed such that its new volume is #4 L#, how many moles of gas must be released from the container to maintain a constant temperature and pressure?
  
• How do you use the binomial series to expand #f(x)=(1+x)^(1/3 )#?
  
• How do you convert #4=(x-4)^2+(y-1)^2# into polar form?
  
• Question #9245f
  
• What numbers would the base-10 logarithm of 270 fall between?
  
• What is the formula for distance from a changing velocity?
  
• What is the magnitude of vector #AB# if #A= (4,2,-6)# and #B=(9,-1,3)#?
  
• How can I recognize a geometric sequence?
  
• What is the sum of the arithmetic sequence 22, 13, 4?
  
• What is the range of #f(x)=|x+4|+2#?
  
• What is the graph of #r=a cos 2theta#?
  
• How do you calculate the density of a gas with temperature change?
  
• How does the gravitational force exerted by a proton on an electron compare to the gravitational force exerted by an electron on a proton?