Sin(A+B) = SinACosB + CosASinB
Cos(A+B) = CosACosB - SinASinB
Note pi is taken as pi radians = 180 degrees. Cospi = Cos180 = -1.
Sinpi = Sin 180 = 0
Cos(A+pi) = CosACospi - SinASinpi = (CosA) * (-1) - (SinA) *(0) = -CosA.
Sin(A+pi) = SinACospi + CosASinpi = (SinA)* (-1) + (CosA) * (0) = -SinA.
Cos(A+pi) - Sin(A+pi) = -CosA - -SinA = -CosA + SinA = SinA - CosA.
Answer = (a).
Answer:
3xyzsquare root of xy^2
the third option
Step-by-step explanation:
look for what you cn take from all of it equally
Answer:
40,000 ml
Step-by-step explanation:
1 liter = 1000 ml
so 40 x 1000 = 40000
Answer: D
Step-by-step explanation:Lets label hot dogs as 'h' and soft drinks as 's'
6h + 4s = 13 (Equation 1)
3h + 4s = 8.50 (Equation 2)
We can solve by process of elimination.
Subtract equation 1 from equation 2.
We get:
3h = 4.5
h = 1.5
So that means that the hot dog costs $1.50 which is answer choice D.
Ur present participle phrase is : Jamming too much trash into a garbage bag
** a participle phrase is a verbal that modifies a noun or pronoun....it is acting as an adjective modifying the noun " John ". The present tense will end in : - ing,- ed, -d, -t, -n, or - ne.
