2) If `A=[(1,2),(2,1)] and A(AdjA)=K.I` then the value of K is

If A=[[2,4],[-1,k]] and A^2=0 , rhen find the value of k

If A=[(cosx,sinx),(-sinx,cosx)] and A.(adjA)=k[(1,0),(0,1)] then the value of k is

If A=[(cosx,sinx),(-sinx,cosx)] and A.(adjA)=k[(1,0),(0,1)] then the value of k is

If matrix A=[[1,-1],[-1 ,1]] and A^2=k A , then write the value of k

If matrix A=[[1,-1],[-1 ,1]] and A^2=k A , then write the value of k

If the area bounded by y=x^(2) and y=(2)/(1+x^(2)) is (K_(1)pi-(K_(2))/(3)) sq. units (where K_(1), K_(2) in Z ), then the value of (K_(1)+K_(2)) is equal to

If sum_(k=1)^(k=n)tan^(- 1)((2k)/(2+k^2+k^4))=tan^(- 1)(6/7), then the value of 'n' is equal to

If int_(1/2)^2 1/x cosec^(101)(x-1/x)dx=k then the value of k is :

If A=[[1, 2],[ 4, 2]], then find the value of k if |2A|=k\ |A|

(i) If the points (1,4),(3,-2)and (k,1) are collinear, fine the value of k. (ii) If the points A(k+1,2k),B(3k,2k+3)andC(5k-1,5k) are collinear, then find k