Please help, and explain! Thanks in advance.

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

[tex]5 \times1 \frac{12}{13} [/tex] me

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