Sin135. Cos210. tan240. Cot 300.sec330
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We are givencos300∘ tan330∘ sec420∘cot135∘ cos210∘ cosec315∘It can be writtn ascos300∘ tan330∘ sec420∘cot135∘ cos210∘ cosec315∘=cos(2π−60∘) tan(2π−30∘) sec(2π+60∘)cot(π−45∘) cos(π+30∘) cosec(2π−45∘)(As, cos(2π−x)=cosx, tan(2π−x)=tanx, sec(2π+x)=secx
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