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Question 1
Question: Find n. Answer: i) ii..
Question: Find n. Answer: i) ii..Question 8
Question: Answer: ..
Question: Answer: ..Question 5
Question: Answer: ..
Question: Answer: ..Proof:
From the definition of inverse of a matrix, we have (AB)(AB) - 1 = I or A - 1 (AB)(AB) - 1 = A - 1 I (Pre-multiplying both sides by A - 1 ) or (A - 1 A) B (AB) - 1 = A - 1 (Since A - 1 I = A - 1 ) or I B (AB) - 1 = A - 1 or B (AB) - 1 = A - 1 or (B - 1 B)(AB) - ..
Proof:
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..Suggested answer:
Adding vertically, ..
Adding vertically, ..Harmonic Progression (H.P.)
A sequence of numbers is said to form a harmonic progression if their reciprocals form an arithmetic progressio..
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