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    Simplify Seven Trigonometric Expressions

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    1. [sin(x+b) + cos(x+b)]/[cos(x+b)-sin(x+b)]=

    2. cos^2(x+b)-cos^2(x-b)=

    3. tan x + cot 2x =

    4. tan (45 + x) -tan (45 -x)=

    5. tanx - cotx + cot 2x =

    Plus two more...

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    https://brainmass.com/math/basic-algebra/simplify-seven-trigonometric-expressions-43209

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    1.

    2. , so I suppose you have to compute

    Solution.

    3.

    4.
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    Solution Summary

    Seven trigonometric expressions are simplified. The solution is detailed and well presented. The response received a rating of "5" from the student who originally posted the question.

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