Questions asked by Sayan Das

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• Are there any equation for 2d motion and if present what are they?
  
• Why can't there be an axiom of congruency of triangles as A.S.S. similar to R.H.S.?
  
• In a triangle ABC, AB=AC and D is a point on side AC such that BCxBC=ACxCD. How to prove that BD=BC?
  
• Why do planets have elliptical orbits?
  
• What is the impact of Buddhism on the world?
  
• Why does a soluble metal salt reacts with NaOH/KOH to produce salt and insoluble metal hydroxide?
  
• Why do metal nitrates decompose on heating and produces metal oxide, nitrogen dioxide and oxygen?
  
• Do common salt and sodium hydroxide chemically react together and if they react what do they form on reacting?
  
• How can we prove using mathematical induction that #n^2+n+1# is an odd number if n is a natural number?
  
• How can we prove using mathematical induction that #2^(n+1)>2n+1# if n is a natural number?
  
• How can we prove using mathematical induction that #n^2+n+1# is a prime number if n is a natural number and a prime number itself?
  
• How are electric and magnetic fields related?
  
• What is a magnetic field?
  
• What is the structure of #Al(H_2O)_6^(3+)#?
  
• Why do we get a positive integer on multiplying two negative integers?
  
• How do we add two numbers using logic gates?
  
• How do we derive Cramer's method?
  
• Given #(ay-bx)/p=(cx-az)/q=(bz-cy)/r#. How to prove that #x/a=y/b=z/c#?
  
• How can we represent a given matrix as the product of two other matrices?
  
• If #f(x)=ax^n#, then why is #f'(x)=nax^(n-1)#?
  
• If #f(x)=sin x# and #g(x)=e^x#, why is #f'(x)=cos x# and #g'(x)=e^x#?
  
• How do we derive the product rule?
  
• What is the value of #lim_(xrarr0)((x+32)^(1/5)-2)/x#?
  
• Each of two equal sides of an isosceles triangle are 20cm in length and the included angle is 45 degrees. How do we find the third side and the area of the triangle?
  
• How can we derive Kirchoff's current law and Kirchoff's voltage law?
  
• What is the sum of the series #1+(1+x)+(1+x+x^2)+(1+x+x^2+x^3)+..."to n terms"#?
  
• What is a semilunar valve and where is it present?
  
• How to edit a question on Socratic?
  
• What are the different kinds of f orbitals?
  
• Two circles having radii #a#and #b# touch each other externally. If #c# is the radius of another circle which touches these two circles as well as a common tangent to the two circles, how do we prove that #1/sqrtc=1/sqrta+1/sqrtb#?
  
• If light is a form of energy, why should it get attracted by the immense gravitational force exerted by a black hole?
  
• How to name an organic compound if it has #-CH_2OH# as a substituent?
  
• If in a quadrilateral ACBD, AC=AD, BC=BD and angle A is greater than 180 degrees, can ACBD be called a kite?