You want to end up with . Expand this using the angle sum identity for sine:
We want this to line up with . Right away, we know
.
We also need to have
Recall that for all
; this means
Then
So we end up with
13. A cone with a radius of 3 inches and a height of 7 inches has the same radius as a cylinder. If the cylinder's volume is two
1 answer:
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Hope this helped and I’ve shown my work and the answer! :)
