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cos 70^(@) + sin 70^(@) + tan 65^(@) + c...

` cos 70^(@) + sin 70^(@) + tan 65^(@) + cot 65^(@) "को" 0 ^(@) "से" 45^(@) ` के बीच कोण के त्रिकोणमितीय अनुपातों में व्यक्त कीजिए |

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