Mathematics, 31.10.2020 05:30 jimennacastillo15
Which of these expressions is the simplified form of the expression (StartFraction sine (x) Over 1 minus cosine squared (x) EndFraction) tangent (StartFraction x Over 2 EndFraction) ?
Answers: 3
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    ![[\because \tan \left(\dfrac{x}{2}\right)=\dfrac{1-\cos (x)}{\sin (x)}]](/tpl/images/0857/9319/35211.png)
    ![[\because a^2-b^2=(a-b)(a+b)]](/tpl/images/0857/9319/192da.png)
![[\frac{\text{sin(x)}}{1-\text{cos}^2(x)}]\tan(\frac{x}{2} )](/tpl/images/0857/9319/e1c10.png)
![[\frac{\text{sin(x)}}{1-\text{cos}^2(x)}]\tan(\frac{x}{2} )=\frac{\text{sin(x)}}{1-\text{cos}^2(x)}\times \frac{1-\text{cos}x}{\text{sinx}}](/tpl/images/0857/9319/f5d5b.png)
[Since. 
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Which of these expressions is the simplified form of the expression (StartFraction sine (x) Over 1 m...
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