If `p x^4+q x^3+r x^2+s x+t=|x^2+3xx-1x+3x+1 2-xx-3x-3x+4 3x|` then `t` is equal to `39` `20` `15` `21`

If px^4+qx^3+rx^2+sx+t=|(x^2+3x,x-1,x+3),(x+1,2-x,x-3),(x-3,x+4,3x)| then t is equal to

x xx x^2 xx x^3 xx x^4

If px^(4)+qx^(3)+rx^(2)+sx+t=|{:(x^(2)+3x,x-1,x+3),(x^(2)+1,2-x,x-3),(x^(2)-3,x+4,3x):}| then t is equal to

If x^(2) - 3x + 2 is factor of x^(4) - px^(2) + q then 2q - p is equal to

lim_(x to 2) (x^(3) + x^(2) + 4x + 12)/(x^(3) - 3x + 2) is equal to

Lt_(x rarr1) (x^(3)+3x-4)/(2x^(2) + x-3) is equal to

If (x ^(2) +x+1) + (x^(2) + 2x +3) + (x^(2) + 3x +5) + ….. + (x ^(2) + 20x + 39) =4500, then x is equal to :

Solve for x : 2^(5x - 1) = 4 xx 2^(3x + 1)

If |(x^2+x,x+1,x-2),(2x^2+3x-1,3x,3x-3),(x^2+2x+3,2x-1,2x-1)|=ax-12 then 'a' is equal to (1) 12 (2) 24 (3) -12 (4) -24

If |(x^2+x,x+1,x-2),(2x^2+3x-1,3x,3x-3),(x^2+2x+3,2x-1,2x-1)|=ax-12 then 'a' is equal to (1) 12 (2) 24 (3) -12 (4) -24