The skin of tabala is tightened to produce shrill sound why

The skin of the tabla is tightened to produce a sound of high pitch.

Explanation:

hope it's helps you

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west