What’s the following is NOT true about the expression shown?
7x^2+4x-7x^+1
A) The polynomial has 4 terms
B) The degree is 6
C) do you leading coefficient is -7
D) The constant term is 1
Someone answer ASAP please

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