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Sin215+sin225+sin265+sin275 the value is and I need the exact solevd solution |
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Answer» sin265∘+sin225∘+cos235∘+cos255∘ ⇒sin265∘+sin2(90∘−65∘)+[cos235∘+cos2(90∘−35∘)] ⇒(sin265∘+cos265∘)+(cos235∘+sin235∘) ⇒1+1 ⇒2 |
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