
Sequence & Series Set 1
Authored by Srividya S
Education
12th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If x>0 then, 1+ loge2 x/1! +loge2 x/2! + ….... =
x
x2
2x
√x
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If A, B, C are the angles of a triangle and e^ia ,e^ib, e^ic are in A.P. Then the triangle must be
right angled
isosceles
equilateral
Pluto
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the geometric mean of numbers 7, 7^2, 7^3 ,.......,7^n
7 ^ (n+1/2)
5 ^ (n+1/2)
2 ^ (n+1/2)
3 ^ (n+1/2)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sum of 20 terms of 1.32 + 2.52 + 3.72 + …
178090
168090
188090
198090
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4. If ∑k=1ton k(k + 1) (k — I) = pn^4 + qn^3 + fn^2 + sn where p, q, t and s are constants, then the value of s is equal to
-1/4
-1/2
1/2
1/4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
After striking the floor a certain ball rebounds 1/4th of its height from which it has fallen. The total distance that the ball travels before coming to rest if it is gently released from a height of l20m is
960m
1000m
1080m
Indefinite
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If cos (x - y), cos x and cos (x —y) are in HP, then cos x sec (y / 2) is equal to
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