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वक्र `x=t^(2)+3t-8, y=2t^(2)-2t-5` के बिंदु (2, -1) पर स्पर्श रेखा की प्रवणता है -

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वक्र `x=t^(2)+3t-8, y=2t^(2)-2t-5` के बिंदु (2, -1) पर स्पर्श रेखा की प्रवणता है -
A. `(12)/(7)`
B. `(-6)/(7)`
C. `(6)/(7)`
D. `-(12)/(7)`
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Correct Answer - C
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