Question

x tends to thita limit xcot thita- thitacotx by x-thita

Answer 1

1. In other words, θ →

sin(x) lim = 1. x→0 x

This technique of comparing very short segments of curves to straight line

segments is a powerful and important one in calculus; it is used several times in

this lecture.

Answer 2

Answer:

what is your question. please complete it.