Question

if a={1 2 2 2} and b={2 -1 1 3} then find (ab)' (matrix)​

Answer 1

Answer:

In a triangle ABC, C = 90', then the equation

whose roots are tanA, tanB is

1) ab x² + cx + ab = 0 2) ab x² + c x - ab=0

3) ab x? -c'x - ab = 0 4) ab x? -c-x + ab = 0