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Suppose Sin 25º = K ;find * cos zoº *tan 25° * Sin 205 * cot 65° * (OS (-165) * IOS 25°
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→ Solh.- given sinas : K. cas 20 using above above 0 rela sin cus-20 = k sinusx cas 20 - casus x sinzo - K. 415 cas ao casusosinas =k e sinas = prependicular Hypotenuse ķ 4 K tanrs = Prefendicular 29 Base Jika By using pythgorous theoren. tanas - kesin aos v sin (180 tas + sin 180 casas cas 180 sinas ox -> Jirki (-0) x K + -> O + (-k) -K CS Scanned with CamScannercotos → Cot (90-25) cot A-Q - Cota cotB +1 cotB - Cota cotgox cotas +1 cotas cofgo ох ITAKA +1 K tanas=k T-kh cotas =JFK? k →

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