+ Credit: MATHEMATICSCLASSES<br /><br />Do not forget to LIKE and SUBSCRIBE to my channel, thank you !!! (づ ̄ ³ ̄)づ<br /><br /><br /><br />Permutation and Combination L-7 Part 2- Type 4 Permutation and Combination Restrictions in Permutation- Class 11 Maths Chapter7 NCERT solutions-Mathematic Classes-