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00:00 - 00:59 | so hair matrix is given on matters be given and here one beautiful equation is given that is a + b whole square equal to a square + b square now using this equation we need to find out a and b ok so let's start our solution part so this is the equation what we have given so a + b whole square equal to a square + b square now we need to simplify this equation so this a + b will become a + b into a + b and this is as it is a square + b square now I am going to apply distributive law so this a + b x with this whole Tum a + b and this 20 multiply with this cold so this is a into a + b and + b into a + b on the right-hand part we have |

01:00 - 01:59 | a square + b square now again I am going to apply distributive law so they will be multiplied with a + 11 x so if you multiply into a it will become a square + a into B will become a bi now again here we are going to apply again distributive law Sobi into a will become Be A and B in to be will become be a square alright and on the right-hand part we have a square + b square now a square goes on the right side and because here a square having Plus sign show after going into right hand side it will become minus A square and this ab we have left in the left hand side show a b + b a this again be a square will go will shift in the right hand side show in the right hand side |

02:00 - 02:59 | left with a square + b square square that is minus A square and Square that is minus b square now a square minus A square B square minus b square after simplification it will become zero and in the left and part we have left with a plus bi sorry a into b + b into a alright so hair 0 I can I resume as to produce two Matrix why it is so because we have given a matrix A and B as to cross to alright so this is to cross to matrix Show after multiplication and addition with BA it will become too close to mattress only so that's why I have as humans zero matrix all so here is given as 12 -1 -1 let me check whether a year is 1 2 and -1 -1 not so here is given one |

03:00 - 03:59 | -1 -1 alright and multiply with be so b is given as a -1 -1 alright and then + b is what we have a and b a and this is - 1 and -1 and we have a as 12 -1 -1 now what we are going to do here is matrix multiplication alright matrix multiplication is nothing but the multiplication of eastern of row of first Matrix with multiplication of his term of column of s Matrix so here I am going to multiply 1 into a so one into a will become a and minus 1 into B will become minus b minus b now a into minus one will become -1 and minus 1 into minus one will become plus one now to into a film |

04:00 - 04:59 | a minus 1 into B will become minus b now to into minus one will become -2 and -1 into minus 1 + 1 so this is what we have that is ab now let us find BA so here again we are going to multiply two Matrix and this into one will become a and this minus 1 into two will become -2 now this a into minus one will become minus A minus 1 into minus one will become plus one and this be in one is be on this minus 1 into two will become -2 Nobi into minus one will become minus 1 minus b minus 1 into minus one will become plus one and on the right hand side we are having to cross to matrix |

05:00 - 05:59 | are basically to cross 20 Matrix all elements of this matrix is zero now I am going to add this to matrix show on addition part we are going to add this two Matrix show a minus b i am going to add with a minus 2 Sin A minus b + c minus 2 will become that a and they will be come to a minus b and this will come - 200 - 1 + 1 will become zero only so I am not going to write here and this is what we have left so here is minus 1 minus A + 1 now I am going to add this item to a minus b + b minus 2 minus b + b it will get cancel out so we have left with to a minus 2 and this - 2 + 1 will become -1 |

06:00 - 06:59 | and this is what we have minus b + 12 again - 1 + 1 will become zero and on the right hand side we are having as 802 cross to matrix all right now it waiting 20 of a storm of this Matrix that is I am going to equate first this term so this is minus b and this is on the corresponding and recreate this show minus b equal to zero and this will come be equal to zero only so we got the answer of be alright so value of B is zero now I am going to equate this term with corresponding disturb show minus A + 1 will become zero so this year will be come plus one now we have or both the values as answer because we need to find out the value of A and B so here we are having a equal to 1 |

07:00 - 07:59 | and be equal to zero |