Question

por favor me ajudem
calcule o determinante
|a a+1|
|b b+1|

Answer 1

$\boxed{\boxed{det = a*(b+1)-b(a+1)=ab+a-ab-b=\boxed{a-b}}}$

Answer 2

a.(b + 1) - b(a + 1)
ab + a - ab - b
a - b