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Sec A +tan A= p then …

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Sec A +tan A= p then find the value of cosec A

Posted by Aakriti Gupta 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Deepanshi Agrawal 6 years, 11 months ago

1/cosA + sinA/cosA = p 1 + sinA = pcosA cosA = p root (1 - sin2A) (1 + sinA)2 = p2(1 - sin2A) D = 4 - 4 (1 + p2)(1 - p2) / 4 - 4(1 - p4) =4p4 SinA = - 2 +_root(4p4)/ 2(1 + p2) - 1+_p2/1 + p2 p2-1/p2+1 = -1 CosecA = p2-1/p2-1 = - 1

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