anonymous
  • anonymous
Verify the trigonometric equation by substituting identities to match the right hand side of the equation to the left hand side of the equation. 1. cot x sec^4 x = cot x + 2 tan x + tan^3 x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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IrishBoy123
  • IrishBoy123
just replace everything by sines and cosines and eventually you will end up with the pythagorean theorem if it is actually an identity.
anonymous
  • anonymous
i got cot x sec^4 x = cot x sec4x . is that correct?
DanJS
  • DanJS
it just says to match the sides

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anonymous
  • anonymous
oops do i have to include the steps also?
anonymous
  • anonymous
i know that but i need to know what the steps are
DanJS
  • DanJS
i would just transfer over to only sin and cos, then simplify it, check
anonymous
  • anonymous
and how do you do that? i have no idea how to transfer over
DanJS
  • DanJS
cot(x) = cos(x) / sin(x) csc = 1/sin .. remember those
anonymous
  • anonymous
yes
DanJS
  • DanJS
tan = sin/cos
DanJS
  • DanJS
the left side goes to \[\large \frac{ 1 }{ \sin(x)*\cos^3(x) }\]
DanJS
  • DanJS
show the right side does the smae thing
anonymous
  • anonymous
sec^2(x) = 1 + tan^2(x)?
DanJS
  • DanJS
yeah you can use that on the left side and try to make it look like the right

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