Sin (a+b) = sin a. cos b + cos a. sin b
a= 50° and b=40°, then
sin(50+40) = sin 50° . cos 40° + cos 50° . sin 40°
sin(50+40) = sin 90° = 1 and
sin 50° . cos 40° + cos 50° . sin 40° = 1
Answer:
Step-by-step explanation:
I think its a normal 7 and a normal 3 then a -4 and a -9 and a -10
Answer:
5/34
Step-by-step explanation:
6 4/5 = 34 /5
how I got 34 just 6*5+4 = 34
then the reciprocal = (34/5)^-1 = 5/34
Answer:$0.78
Step-by-step explanation:
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