Electrical Engineering Advanced Mathematics

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Need help with questions:

The flux density at a point in space is given by = + + 4 2 8 x ky B a a a x y z Wb/m2 . The value of constant k must be equal to (A) –2 (B) –0.5 (C) +0.5 (D) +2 

 

A continuous random variable X has a probability density function ( ) , x f x e − = 0 . Then < x < ∞ P{X > }1 is (A) 0.368 (B) 0.5 (C) 0.632 (D) 1.0 

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