ECAT Pre Engineering MCQ Test With Answer for Chapter 23 Mathematics

MCQ's Test For ECAT Mathematics Chapter 23 Conic Section

Try The MCQ's Test For ECAT Mathematics Chapter 23 Conic Section

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ECAT Mathematics Chapter 23 Conic Section

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

The magnitude of vector a=i-3j+5k is:

Question # 5

The modulus of 12-5i is:

Question # 6

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

Question # 7

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

Question # 8

If u = xi + yj, then|u|

Question # 9

O (0,0)is called:

Question # 10

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

Question # 11

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

Question # 12

If u = 2ai + i - k and v = i +ai + 4k are perpendicular then a =

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

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