To divide like bases just subtract the exponents
answer is 2^(13-3) or 2^10 or 1024
Remember that cos is just a translation of sin and vice versa.
So:
Sin(x) = Cos(90 - x)
Cos(x) = Sin(90 - x)
Therefore, to answer your question:
Cos(19) = Sin(90 - 19)
= Sin(71)
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable
Exact Form:
x = - 25/8 
Decimal Form:
x = -3.125
Mixed Number Form:
x = - 3/1/8 
Step-by-step explanation: