`0 < A, B < pi/2, sinA=1/(sqrt(10)),sinB=1/(sqrt(5))=>A+B=`

If A dn B be 3xx3 matrices the AB=0 implies (A) A=0 or B=0 (B) A=0 and B=0 (C) |A|=0 or |B|=0 (D) |A|=0 and |B|=0

If A dn B be 3xx3 matrices the AB=0 implies (A) A=0 or B=0 (B) A=0 and B=0 (C) |A|=0 or |B|=0 (D) |A|=0 and |B|=0

6.If A and B are matrices with AB=0 and BA=0 ,then a) A=0 or B=0 b) Either A=0 or B=0 c) A=0 and B=O d) None of these.

If A=[1 0 0-1] and B=[0 1 1 0] , then A B=[0 1-1 0] and B A=[0-1 1 0] . Clearly A B!=B A .

Prove that the operation * on the set M={[a0 0b]: a ,\ b in R-{0}} defined by A*B=A B is a binary operation.

The solution of (dy)/(dx) = (ax+ h)/( by + k) represents a parabola, when: a) a = 0, b =0 b) a = 0, b =0 c) a = 0, b ne 0 d) a =2, b =1

If A=[(0,a),(0,0)] and B = [(b,0),(0,0)] , then find AB.

Find the output Y of the following circuit if the inputs are: A=0, B=0, A=0, B=1,A=1, B=0,A=1,B=1

The roots of the equation ax^2+bx + c = 0 will be imaginary if, A) a gt 0 b=0 c lt 0 B) a gt 0 b =0 c gt 0 (C) a=0 b gt 0 c gt 0 (D) a gt 0, b gt 0 c =0

If A= [[0,1],[0,0]] ,B= [[1,0],[0,0]] , then BA=