Question

1)the roots of the equation and 7x^2 +x-1=0 are_________
2) Easton triangle ABC , angle c=90° , then sign (a+b) = ______​

Answer 1

Answer:

1)Use the quadratic formula.=(29)ans

Step-by-step explanation:

2)Then A can be 60 and B can be 30

60+30=90+90=180

Answer 2

Step-by-step explanation:

1. 29

2. 180°

hope its helpful to you