Which expression is equivalent to (2 + 4) (2x – 1) (2 + 3)? O 203 + 13.02 – 17:+ 12
O 2x3 + 13.02 + 252 – 12
O 2.03 + 13x2 + 173 - 12
O 2x3 + 13.c? + 173 + 12

36

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

i honestly dont know

correct answer was 0.5