the angle of elevation of a jet plane from a point P on the ground is 60 degree after a flight of 15 seconds the angle of elevat
ion changes to 30 degree if the jet plane is flying at a constant height of 1500 root 3 metre find the speed of the jet plane
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Answer:
Step-by-step explanation:
We are going to use the identity
because this identities right hand side matches your expression where
and
.
So we have that is equal to
.
well, if the diameter is 5, thus its radius must be half that, or 2.5, and therefore, the radius of the one four times as much will be (4)(2.5).
Let's simply get their difference, since that'd be how much more is needed from the smaller to larger sphere.