Question

r
63. The angle of elevation of an aeroplane from a point on the ground is 45°. After a
rflight of 15 seconds, the elevation changes to 30°. If the aeroplane is flying at a
height of 3000 metres, find the speed of the aeroplane.
4.
1
mb 112 11m above the ground is observed at an elevation​

Answer 1

Answer:

Your solution is in the attachment

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Answer 2

hi... Mayank I am here......