Question #05cf2

1 Answer
May 31, 2017

1

Explanation:

1) First let's resolve the limit:
lim_(x->0) (Tan7x)/sinx = tan(7*0)/sin(0)= tan0/sin0

2) We know that:
tan=sin/cos

So we can write:
tan0/sin0 = (sin0/cos0)/sin0
=> = 1/cos0

3) And then:
1/cos0=1/1=1