This question is exactly same as Ex 3.2, 21, Matrices Class 12 NCERT BOOK        

Please check the answer and VIDEO here

https://www.teachoo.com/3129/682/Ex-3.2--21---The-restriction-on-n--k--p-so-that-PY---WY-is/category/Ex-3.2/

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Question 2 Assume 𝑋,π‘Œ,𝑍,π‘Š and 𝑃 are matrices of order 2×𝑛,3Γ—π‘˜,2×𝑝,𝑛×3 and π‘Γ—π‘˜, respectively. Then the restriction on 𝒏,π’Œ and 𝒑 so that 𝑷𝒀+𝑾𝒀 will be defined are: (A) π‘˜=3,𝑝=𝑛 (B) π‘˜ is arbitrary, 𝑝=2 (C) 𝑝 is arbitrary, π‘˜=3 (D) π‘˜=2,𝑝=3This question is exactly same as Ex 3.2, 21, Matrices Class 12 NCERT BOOK Please check the answer and VIDEO here https://www.teachoo.com/3129/682/Ex-3.2--21---The-restriction-on-n--k--p-so-that-PY---WY-is/category/Ex-3.2/ So, the correct answer is (A)

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.