21 - Matrices and Determinant Questions Answers

Let A =   and 10B = if B inverse of matrix A, then k is
 
1)-2

2)-1

3)2

4)5 

 

Asked By: ROHAN KOSANDAL 4 year ago
is this question helpfull: 17 15 read solutions ( 4 ) | submit your answer

what is the solution of the equation ln(dy/dx) + x = 0 ?

(a) y + ex = c    (b)  y - e-x = c    (c) y + e-x  = c    (d) y - ex  = c 

Asked By: SWATI KAPOOR 5 year ago
is this question helpfull: 8 5 read solutions ( 1 ) | submit your answer

consider the curve X = a(cosɵ + sinɵ ) and Y= a( sinɵ - ɵ cosɵ ).what is d2y/dx2 equal to ?

(a) sec2ɵ    (b) -cosec2ɵ   (c)  sec3ɵ/aɵ   

 

Asked By: SWATI KAPOOR 5 year ago
is this question helpfull: 6 5 read solutions ( 1 ) | submit your answer

Which one of the following is one of the solution of the equation tan2x.tanx = 1?

(a) π /12  (b) π /6  (c) π /4   (d) π /3

Asked By: SWATI KAPOOR 5 year ago
is this question helpfull: 10 5 submit your answer

In a triangle ABC, c=2, A=45 degree, a = 2root2, then what is C equal to ?

(a) 30 degree   (b) 15 degree   (c) 45 degree 

Asked By: SWATI KAPOOR 5 year ago
is this question helpfull: 8 5 submit your answer

Question 1:- If A and B are square natrices of second order such that IAI =-1 , IBI = 3 , then what is I3ABI equal to ?

(a) 3   (b)  -9     (c)  -27  

Asked By: SWATI KAPOOR 5 year ago
is this question helpfull: 9 4 submit your answer

If A= is symmetric matrix, then what is x equal to ?

(a) 2    (b) 3   (c) -1    (d) 5 

Asked By: SWATI KAPOOR 5 year ago
is this question helpfull: 5 3 submit your answer

Queation 1 :- every quadratic equation ax2 + bx + c = 0 where a,b,c belongs to R, a ≠ 0 has 

(a) exactly one real root

(b) art least one real root

(c) at least two real roots

(d) at most two real roots.

Asked By: SWATI KAPOOR 5 year ago
is this question helpfull: 8 2 submit your answer

If a ≠b≠c are all positive, then the value of the determinant a  b  c  is:-  

                                                              b  c  a

                                                              c  a  b 

(a)non-negative       (b)   non- positive     (c) negative     

(d) positive                             

 

Asked By: SWATI KAPOOR 5 year ago
is this question helpfull: 6 2 submit your answer

what is hermition and skew harmition matrix?

 

Asked By: GARLAPATI ARUN 5 year ago
is this question helpfull: 6 3 read solutions ( 1 ) | submit your answer

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