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Trigonometric Limit Problem

  • Thread starter PotentialE
  • Start date
  • #1
57
0

Homework Statement


find the limit as x approaches 0 of 3sin4x / sin3x


Homework Equations


sin2x = 2sinxcosx
lim as x ->0 of sinx / x =1


The Attempt at a Solution


sin4x = 2 sin2x cos2x
 

Answers and Replies

  • #2
256
0
Divide and multiply both numerator and denominator with the angles of resective sin .
You will get one famous limit , after that its a breeze :cool:
 

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