Question

1.n(A)+n(A')=
2.n(A)+n(B)-n(AnB)=
3.n(B)-n(AnB)=

IN SETS

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Answer 1

Step-by-step explanation:

→ n(A U B) = n(A only) + n(B only) + n(A ∩ B)

→ n(A U B) = n(A) - x + n(B) - x + x

→ n(A U B) = n(A) + n(B) - x - x + x

→ n(A U B) = n(A) + n(B) - 2x + x

→ n(A U B) = n(A) + n(B) - x

Answer 2

Answer:

1 : something that happens : occurrence. 2 : an event or series of events designed to evoke a spontaneous reaction to sensory, emotional, or spiritual stimuli. 3 : something (such as an event) that is particularly interesting, entertaining, or important.A body is projected with initial velocity of 40 m/s and at an angle of 30°with the horizontal. Calculate (i) time of flight and (i i) horizontal range of projectile.(assume g= 10 m/s²)