Question

p ∧ q is false and p ∨ q is true, the ________ is not true. A) p ∨ q B) p ↔ q C) ~p ∨ ~q D) q ∨ ~p (ii) If A = [ 2 −4 3 1 ] then the adjoint of matrix A is A) [ −1 3 −4 1 ] B)[ 1 4 −3 2 ] C) [ 1 3 4 −1 ] D)[ −1 −3 −4 2 ] (iii) If A = [ 1 2 2 1 ] and A(adjA) = k × I then the value of k is ..... A) 1 B) –1 C) 0 D) –3 (iv) If the sum of the slopes of the lines represented by x 2 + kxy – 3y2 = 0 is twice their product, then the value of k is ........ A) 1 B) –1 C) –2 D) –3

Answer 1

Answer:

221c has your answer 5

Step-by-step explanation:

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