Prove that the following figure
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taking LHs>>>>>>>>
1/cos70×sin20+cos20×1/sin70>>>>
sin20/cos(90-20)+cos20/sin(90-20)>>>>>>>>
sin20/sin20+cos20/cos20>>>>>>>>
1+1>>>>>>>
2.......RHS
1/cos70×sin20+cos20×1/sin70>>>>
sin20/cos(90-20)+cos20/sin(90-20)>>>>>>>>
sin20/sin20+cos20/cos20>>>>>>>>
1+1>>>>>>>
2.......RHS
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welc
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