That's of course the sum angle formula for sine
sin(a+b) = sin a cos b + cos a sin b
We have a=20° b=40°
sin 20° cos 40° + cos 20° sin 40°
= sin(20°+40°)
= sin(60°)
= √3/2
Answer: √3/2
Answer:
n= y- x/2
Step-by-step explanation:
Step-by-step explanation:
explain all steps to prove or disprove.
A(-5,0) B(5,0)
Step-by-step explanation:

1.80 per lb for 100 lbs = 1.80 * 100 = 180
1/10 * 180 = 180/10 = $ 18 <==