Heyyyi just wanted to know who else is on

If 3x+8=3x+8 is it one solution or no solution

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

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