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hope it's absolutely right
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sanjana7819:
Thanks!!
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1. PARALLEL
2.
![\cos( \alpha ) = \frac{12}{13} \cos( \alpha ) = \frac{12}{13}](https://tex.z-dn.net/?f=+%5Ccos%28+%5Calpha+%29++%3D++%5Cfrac%7B12%7D%7B13%7D+)
![\cos( \alpha ) = \frac{b}{h} \cos( \alpha ) = \frac{b}{h}](https://tex.z-dn.net/?f=+%5Ccos%28+%5Calpha+%29++%3D++%5Cfrac%7Bb%7D%7Bh%7D+)
MEAN ☞☞☞
B = 12
H=13
![\sec( \alpha ) = \frac{h}{b} \sec( \alpha ) = \frac{h}{b}](https://tex.z-dn.net/?f=+%5Csec%28+%5Calpha++%29++%3D++%5Cfrac%7Bh%7D%7Bb%7D+)
![= > \sec( \alpha ) = \frac{13}{12} = > \sec( \alpha ) = \frac{13}{12}](https://tex.z-dn.net/?f=+%3D++%26gt%3B+%5Csec%28+%5Calpha+%29++%3D++%5Cfrac%7B13%7D%7B12%7D+)
![\tan( \alpha ) = \frac{p}{b} \tan( \alpha ) = \frac{p}{b}](https://tex.z-dn.net/?f=+%5Ctan%28+%5Calpha+%29++%3D++%5Cfrac%7Bp%7D%7Bb%7D+)
![- 1 + \: { \sec( \alpha ) }^{2} = { \tan( \alpha ) }^{2} - 1 + \: { \sec( \alpha ) }^{2} = { \tan( \alpha ) }^{2}](https://tex.z-dn.net/?f=+-+1+%2B+%5C%3A++%7B+%5Csec%28+%5Calpha+%29+%7D%5E%7B2%7D++%3D++%7B+%5Ctan%28+%5Calpha+%29+%7D%5E%7B2%7D)
![= > { \tan( \alpha ) }^{2} = - 1 + {( \frac{13}{12} )}^{2} = > { \tan( \alpha ) }^{2} = - 1 + {( \frac{13}{12} )}^{2}](https://tex.z-dn.net/?f=+%3D++%26gt%3B++%7B+%5Ctan%28+%5Calpha+%29+%7D%5E%7B2%7D++%3D+-++1+%2B+++%7B%28+%5Cfrac%7B13%7D%7B12%7D+%29%7D%5E%7B2%7D+)
![= > { \tan( \alpha ) }^{2} = - 1 + \frac{169}{144} = > { \tan( \alpha ) }^{2} = - 1 + \frac{169}{144}](https://tex.z-dn.net/?f=+%3D+++%26gt%3B++%7B+%5Ctan%28+%5Calpha+%29+%7D%5E%7B2%7D+++%3D+-+++1+%2B++%5Cfrac%7B169%7D%7B144%7D+)
![= > \frac{25}{144} = > \frac{25}{144}](https://tex.z-dn.net/?f=+%3D++%26gt%3B++%5Cfrac%7B25%7D%7B144%7D+)
![\tan( \alpha ) = \frac{5}{12} \tan( \alpha ) = \frac{5}{12}](https://tex.z-dn.net/?f=+%5Ctan%28+%5Calpha+%29++%3D++%5Cfrac%7B5%7D%7B12%7D+)
2.
MEAN ☞☞☞
B = 12
H=13
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