Questions asked by Shou

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• How do you solve #2cos^2x-5cosx+3=0#?
  
• How do you change #16x^2+25y^2-32x+50y+16=0# to standard form?
  
• How to convert #r^2 = sintheta# from polar to rectangular form?
  
• How to convert #r=8+3costheta# to rectangular form?