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sara1234

  • 3 years ago

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  1. sara1234
    • 3 years ago
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    Verify each trigonometric equation by substituting identities to match the right hand side of the equation to the left hand side of the equation.

  2. sara1234
    • 3 years ago
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    2. (sin x)(tan x cos x – cot x cos x) = 1 – 2 cos^(2)x

  3. shaik0124
    • 3 years ago
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    i know the answer

  4. shaik0124
    • 3 years ago
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    sin *tanx*cosx-sinx *cotx*cosx |dw:1353183388405:dw|

  5. shaik0124
    • 3 years ago
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    sin^2x-sinx now further solve u will get right hand side

  6. shaik0124
    • 3 years ago
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    sara did u understand my solution

  7. shaik0124
    • 3 years ago
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    @sara1234

  8. shaik0124
    • 3 years ago
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    sorry i done a mistake

  9. shaik0124
    • 3 years ago
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    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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