Question

the depth of the school classroom is five meters the height of the upper edge of the window above the floor is 3.0 m the height from the floor to the window sill is0.9 m the projection of the visible part of the sky (free horizon) is 0.5 m the height of the table is 0.8 m

calculate the angle of incidence

How to calculate Angle of incidence

and angle of Opening the farthest working place in the classroom using the tables of natural values Of trigonometric quantities

And access them from hygiene point of view

Answer 1

Explanation:

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Answer 2

Answer:

If ax + by = a2 – b2 and bx + ay = 0, find the value of (x + y).