Answer:
answer is : Cos(13pi/8) = 0.3826
Step-by-step explanation:
We have, Cos (13pi/8)
Since 13pi/8 can be shown as 3pi/2 < 13pi/8 < 2pi
Hence 13pi/8 lies on fourth quadrant.
In fourth quadrant cosine will be positive.
Cos (13pi/8) = cos(3pi/2 + pi/8)
applying formula cos(A+B) = cos A cosB - sinAsinB
i.e Cos(3pi/2 + pi/8) = cos(3pi/2)cos(pi/8) - sin(3pi/2)sin(pi/8)
∵ Remember cos(3pi/2) =0 , sin(3pi/2) = -1
Cos(3pi/2 + pi/8) = 0 cos(pi/8) - (-1)sin(pi/8)
Cos(3pi/2 + pi/8) = 0 + 0.3826
Cos(3pi/2 + pi/8) = 0.3826
Hence we got Cos(13pi/8) = 0.3826
Answer:
1/3
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
Ok, so the third and fourth don't seem right. I am going to assume it's either 1 or 2. Sorry if you get it wrong because of me.
6 d x 24<span> hr = 144 hr 144 hr </span>x 60 min<span> = 8640 </span>min<span> 16 hr </span>x 60 min<span> = 960 </span>min<span> 8640 </span>min<span> + 960 </span>min<span> + 34 </span>min<span>= 9634 </span>min<span>. In the first </span>conversion<span>, we used </span>24 hours<span> because there are </span>24 hours<span> in a ... </span>Convert<span> 4 gallon 3 quarts </span>1 pints<span> into </span>pints<span>. ... For example, larger to smaller units still </span>multiply<span> and smaller to larger units still </span>divide<span>.</span>
