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Practice Test - Mathematics 15
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Question 1
If the straight lines x = 1 + s, y = –3 – λs, z = 1 + λs and x =
, y = 1 + t, z = 2 – t with parameters s and t respectively, are co-planar then λ equals
, y = 1 + t, z = 2 – t with parameters s and t respectively, are co-planar then λ equals Question 2
The vectors 
are not perpendicular and 
are two vectors satisfying: 
= 0. Then the vector 
is equal to
are not perpendicular and are two vectors satisfying: = 0. Then the vector is equal to Question 3
are 3 vectors, such that 
, 
= 3, then 
is equal to Question 4
In a ΔABC, 
and ∠C = 60o then ∠A will be
and ∠C = 60o then ∠A will beQuestion 5
The summation of
, will be
, will beQuestion 6
A function is matched below against and interval where it a supposed to be increasing. Which of the following pairs is incorrectly matched?
Interval Function
Interval Function
Question 7
Let α and β be the roots of equation px2 + qx + r = 0, for p≠0. If p, q, r are in A.P. and (1/α)+(1/β) =4, then the value of
|α-β|is
|α-β|is
Question 8
If the sum of the first ten terms of the series
is 
m, then m is equal to
is m, then m is equal toQuestion 9
In a binomial distribution B
, if the probability of at least one success is greater than or equal to 9/10, then n is greater than
, if the probability of at least one success is greater than or equal to 9/10, then n is greater thanQuestion 10
Total number of rational terms in 
is
is- 564 attempts
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Apr 9JEE & BITSAT
