ECAT Pre General Science MCQ Test With Answer for Mathematics Chapter 23

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Sr.#	Question	Answer
1	If\|a\| =\|b\| = \|a+b\|=1, then\|a-b\| is equal to:	A. 1 B. √3 C. √2 D. 7
2	If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p=	A. 1 B. 2 C. -1 D. -3

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ECAT Pre General Science MCQ Test With Answer for Mathematics Chapter 23

MCQ's Test For ECAT Mathematics Chapter 23 Conic Section

ECAT Mathematics Chapter 23 Conic Section

If|a| =|b| = |a+b|=1, then|a-b| is equal to:

If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p=

Vector i =

If a,b = 0 then

If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]=

If the angle between two vectors u and v is 0 orπ, then the vectors u and v are:

If m and n be two scalars, then (m+n) g =

The positive real number which is the measure of the length of a vector is called the

The angle between the vectors u =2i - i + k and v = -i + i is:

I f a =5i + 2j, then|a| =

The modulus of 12-5i is:

If the sum of two unit vectors is a unit vector the the magnitude of their difference is

a ______quantity is one that possesses both magnitude and direction.

If the angle between two vectors u and v is 0 orπ, then the vectors u and v are:

The angle between the vectors u = [-3 , 5] and v = [6 , -2] is:

If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is:

If u = xi + yj, then|u|

If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| =

The magnitude of vector a 2i-7j is

Vector additon is:

If G is the centroid of the triangle, then GA +GB+GC=

O (0,0)is called:

The vector k = [0,0,1] is called unit vector along:

If a = 2i +2j, b= 3i -j and c=4i +5j, the 3b -a-2c =

The modulus of a vector i-i+ k is:

The vector i = [1,0] is called unit vector along:

If a=5j + 2j,b=2i -3j, then|a+2b|=

If u =[3,-4],then modulus of uis:

If a≠ , b≠ 0 and|a=b|=|a-b|,then vectors a and b are:

If aand bare two vectors then a+b =

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