abstractApex abstractApex
  • 13-10-2016
  • Mathematics
contestada

Which double-angle or half-angle identity would you use to verify that sin2x/2sin^2x=cotx

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Blacklash
Blacklash Blacklash
  • 05-07-2019

Answer:

Double-angle or half-angle identity used is

         sin2x= 2 sinx cosx

Step-by-step explanation:

We have to find [tex]\frac{sin2x}{2sin^2x}[/tex]

sin2x= 2 sinx cosx

Substituting

            [tex]\frac{sin2x}{2sin^2x}=\frac{2sinxcosx}{2sin^2x}=\frac{cosx}{sinx}=cotx[/tex]

Double-angle or half-angle identity used is

         sin2x= 2 sinx cosx

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rrent424
rrent424 rrent424
  • 04-05-2020

Answer:

[D]  sin 2x = 2 sin x cos x

Answer Link

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