Answer the following problem

3. A basketball player stands d feet from the basket. Let h and a be as in the figure below. Using physics, one can show that if the player releases the ball at an angle 0, then the initial velocity required to make the ball go through the basket satisfies N (6 - phe ) p = N ( 1 - sin e ) ( tane - tan a ) do (a) Explain why this formula is meaningful only for a