CBSE 12TH MATHEMATICS - Online Test
Q2.
dx is equal to
Answer : Option B
Explaination / Solution:
∫1xdx=loge|x|+C
Q3. In triangle ABC, which of the following is not true?
Answer : Option B
Explaination / Solution:
(triangle law of vector addition) but
Q4. If 
are two collinear vectors, then which of the following are incorrect
are two collinear vectors, then which of the following are incorrect
Answer : Option A
Explaination / Solution:
If 
are two collinear vectors, then, they are parallel to the same line irrespective of their magnitudes and directions.
are two collinear vectors, then, they are parallel to the same line irrespective of their magnitudes and directions.
Q5. is equal to
Answer : Option B
Explaination / Solution:
=.because ,
Q6.
If x sin (a + y) = sin y, then is equal to
Answer : Option C
Explaination / Solution:
Q7. In the vector form, equation of a plane which is at a distance d from the origin, and is the unit vector normal to the plane through the origin is
Answer : Option D
Explaination / Solution:
In the vector form, equation of a plane which is at a distance d from the origin, and is the unit vector normal to the plane through the origin is given by : 
Q8.
If A and B are two matrices such that AB = BA and BA = A, then
Answer : Option C
Explaination / Solution:
Q9. Find a particular solution of dydx=ytanx;y=1whenx=0
Answer : Option C
Explaination / Solution:
Q10. The equation of the tangent to the curve at the point is
Answer : Option B
Explaination / Solution:
