anonymous
  • anonymous
HELPPP
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
Verify each trigonometric equation by substituting identities to match the right hand side of the equation to the left hand side of the equation.
anonymous
  • anonymous
2. (sin x)(tan x cos x – cot x cos x) = 1 – 2 cos^(2)x
shaik0124
  • shaik0124
i know the answer

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shaik0124
  • shaik0124
sin *tanx*cosx-sinx *cotx*cosx |dw:1353183388405:dw|
shaik0124
  • shaik0124
sin^2x-sinx now further solve u will get right hand side
shaik0124
  • shaik0124
sara did u understand my solution
shaik0124
  • shaik0124
@sara1234
shaik0124
  • shaik0124
sorry i done a mistake
shaik0124
  • shaik0124
here is wright answer tanx = (sinx/cosx) cotx = (cosx/sinx) sinx cosx (tanx - cot x) = sinx cosx (sinx/cosx - cosx/sinx) Cross multiply the equation in the braket and make the in same denomenator. =sin x cos x ((sin^2x - cos^2x)/(cosx sinx)) = sin^2x - cos^2x Replace sin^2 by 1 - cos^2x = 1 - cos^2x - cos^2x = 1 - 2cos^2x

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