Question

A point P on the trajectory of the projectile projected at an angle theta with the horizontal subtends an angle alpha and beta are the point of projection and point of landing

Answer 1

tan α + tan β = tan θ  

Explanation:

Given: A point P on the trajectory of the projectile projected at an angle θ with the horizontal subtends an angle α and β are the point of projection and point of landing.

Solution:

We find that the external angle θ are can be expressed in terms of the internal angles α and β as follows:

tan α + tan β = tan θ  

Tangent of the angle θ formed by the projectile with the horizontal = Sum of tangents of the angles subtended by the horizontal at point of projection and point of landing.

Option 2 is the answer.

Answer 2

Answer: option 2 is correct