IIT-JEE
Exam
Let P = {q : sin q - cosq = 2 cosq} and Q = {q : sin q + cosq = 2 sin q} be two sets. Then
(A) P Ì Q and Q - P ¹ Æ (B) Q Ë P
(C) P Ë Q (D) P = Q
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IIT-JEE Other Question
In an experiment to determine acceleration
due to gravity by simple pendulum, a student
commit positive error in the measurement of
length and 3% negative error in the
measurement of time period. The percentage
error in the value of g will be-
(A) 7% (B) 10%
(C) 4% (D) 3%
Let = ˆ + ˆ + ˆ , = ˆ + ˆ + ˆ
a i j k b i j k and = ˆ - ˆ - ˆ
c i j k be three vectors. A vector
v
in the plane of
a and b , whose
projection on
c
is 1/sqrt3 is given by