Option B
48th term of arithmetic sequence is -152
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Solution:</u></h3>
Given that a arithmetic sequence has explict formula,
![a_n = -11 + (n - 1)(-3)](https://tex.z-dn.net/?f=a_n%20%3D%20-11%20%2B%20%28n%20-%201%29%28-3%29)
To find: 48th term of the arithmetic sequence
The nth term of arithmetic sequence can be found by substituting the required value of n in the explict formula
So 48th term of the arithmetic sequence can be found by substituting n = 48 in explict formula
![a_n = -11 + (n - 1)(-3)](https://tex.z-dn.net/?f=a_n%20%3D%20-11%20%2B%20%28n%20-%201%29%28-3%29)
Plug in n = 48
![a_{48} = -11 + (48 - 1)(-3)](https://tex.z-dn.net/?f=a_%7B48%7D%20%3D%20-11%20%2B%20%2848%20-%201%29%28-3%29)
On solving we get,
![a_{48} = -11 + (47)(-3)\\\\a_{48} = -11 - 141\\\\a_{48} = - 152](https://tex.z-dn.net/?f=a_%7B48%7D%20%3D%20-11%20%2B%20%2847%29%28-3%29%5C%5C%5C%5Ca_%7B48%7D%20%3D%20-11%20-%20141%5C%5C%5C%5Ca_%7B48%7D%20%3D%20-%20152)
Thus 48th term of arithmetic sequence is -152
Answer:
169
Step-by-step explanation:
125+263=388
388-557+169
Answer:
1st = 17A => 17*21 = 357
2nd = A => 1*21 = 21
Step-by-step explanation:
17A + A = 18A
18A = 180
A=10
1st = 17A => 17*21 = 357
2nd = A => 1*21 = 21
Answer:
126
Step-by-step explanation:
cos^2x*(tan^2 x+1)= 126