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chocolate4550
16.12.2019 •
Mathematics
(tan theta+ cot theta)^2= sec^2 theta+cosec^2 theta
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Ответ:
Proved that
.
Step-by-step explanation:
We have to prove that
Now, Left hand side
=![(\tan \theta + \cot \theta)^{2}](/tpl/images/0420/9331/94057.png)
=
{Since we know the formula (a + b)² = a² + 2ab + b²}
=![\tan^{2} \theta + 2 + \cot^{2} \theta](/tpl/images/0420/9331/f4f0d.png)
{Since
}
=![(\tan^{2} \theta + 1) + (\cot^{2} \theta + 1)](/tpl/images/0420/9331/9ef6b.png)
=![\sec^{2} \theta + \csc^{2} \theta](/tpl/images/0420/9331/9775b.png)
{Since we know the identities:
= Right hand side
Hence, proved.
Ответ:
Your answer would be quadrant 2 hope this helps
(づ。◕‿‿◕。)づ