Add (1.3t^3 + 0.4t^2 -24t) + (18t + 0.6t^2) for each term in the second polynomial, enter the letter showing where that term should be placed to add the polynomials vertically

___ =0.6t^2
___ = 0t^3
___ = 8
___ = -18t

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