Unit rate of. 15 degrees. in 2 hours

1 answer:

7 0

Ok, so we need to find the unit rate of 15 degrees in 2 hours.
this is a very simple question, it says here that in 2 hours, there are 15 degrees.
Thus we need to find the unit rate of this given situation per hours.
=> hour many hours are there? The answer is 2
so let us divide 2 by 15 to get the unit rate of the given situation
=> 15 degrees / 2 hours
=> 7.5 degrees / hours
Thus, the unit rate of 15 degrees per 2 hours is 7.5 degrees per hour.

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Cos(2α)*sin(α-β)-cos(β-α)*sin(2α)

Hunter-Best [27]

Answer:

Step-by-step explanation:

cos (2α)*sin (α-β)-cos(β-α)*sin(2α)
cos (β-α)=cos {-(α-β)}=cos (α-β)

[cos (-x)=cos x]

sin(α-β)*cos (2α)-cos (α-β)*sin (2α)=sin (α-β-2α)=sin (-α-β)

=sin {-(α+β)}

=-sin (α+β)

6 0

2 years ago