What is the trinominal w^2-3w=350 factored

If g^-1(x) is the inverse of g (x) which statement must be true

(60 points) explain this in detail

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b