Answer:
a(n) = -3 - 2(n-1)
Step-by-step explanation:
The most general formula for the nth term of an arithmetic sequence (such as this sequence is) is
a(n) = a(1) + c(n-1), where c is the common difference.
Here a(1) = -3 and c = -2.
Thus,
a(n) = -3 - 2(n-1).
Each child has a 50% chance to be a girl and 50%chance to be a boy so with 4 children the probability is
Answer:
-2, 0, 0.4, 1.1, 2, 12, 53, 58
Step-by-step explanation:
1+tan^2=sec^2
so, given expression=
(using sin/cos=tan and tan*cot=1)
hence proved