multiply coefficients and variables
m13 x m6 = 78m^2
since the variables are alike, you would just multiply them as you would do a normal multiplication problem! i used to have so much trouble with this omg. anyway, 13x6=78 so the answer would be 78m
step-by-step explanation: you need to show a picture
answer: option c is correct
we know tha tcos(a-b) = cosa cosb + sinasinb
plugging a = 180 and b = ф
= (-1) cosф+ (0) sinф [ since cos180=-1 and sin180 =0]
= -cosф + 0
therefore option c is the correct answer.
m13 × m6 =...