If `[[a,b],[c,d]]=[[1,2],[3,0]]` then `abcd=`

a=2b=3c=4d then a:b:c:d is

If a:b:c:d=2:3:5:7 and a+b=60, then c+d is_____.

If the solution set of the inequaiton (x+4)(x-1)(x-3)(x+1)<0 is x in(a,b)uu(c,d) then a+b+c+d=1(b)a+b+c+d=2abcd=12(d)ab+cd=7

Prove that |[1,a,a^2,a^3+bcd] , [1,b,b^2,b^3+cda] , [1,c,c^2,c^3+dab] , [1,d,d^2,d^3+abc]|=0

if a=3,b=0,c=2 and d=1 ,find the vale 3a+3b-6c+4d

If ({:(1, 0),(0, 1):})({:(a, b+c),(b-c, d):}) = ({:(4, -5),(3, 2):}) , then (a-b) + (c-d)=____.

If a:b=(2)/(9):(1)/(3),b:c=(2)/(7):(5)/(14) and d:c=(7)/(10):(3)/(5), then find a:b:c:d