Answer:
D) 11/12
Step-by-step explanation:
From 1 to 12, 6 numbers are odd (1, 3, 5, 7, 9, and 11).
7 numbers are non-prime (1, 4, 6, 8, 9, 10, and 12).
2 numbers are both odd and non-prime (1 and 9).
Therefore, the probability is:
(6 + 7 − 2) / 12 = 11/12
solution:
Z1 = 5(cos25˚+isin25˚)
Z2 = 2(cos80˚+isin80˚)
Z1.Z2 = 5(cos25˚+isin25˚). 2(cos80˚+isin80˚)
Z1.Z2 = 10{(cos25˚cos80˚ + isin25˚cos80˚+i^2sin25˚sin80˚) }
Z1.Z2 =10{(cos25˚cos80˚- sin25˚sin80˚+ i(cos25˚sin80˚+sin25˚cos80˚))}
(i^2 = -1)
Cos(A+B) = cosAcosB – sinAsinB
Sin(A+B) = sinAcosB + cosAsinB
Z1.Z2 = 10(cos(25˚+80˚) +isin(25˚+80˚)
Z1.Z2 = 10(cos105˚+ isin105˚)
estimate the probability that angad wins
the equation of a straight line in the form y = mx + b where m is the slope of the line and b is its y-intercept.
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