1.

() cos? 26 + cos 64° sin 26° + 2cot 54°

Answer»

We know that cos64° = sin 26°and tan 36° = cot 54°so cos^2(26°) +(sin26,* sin26)+ (cot54/cot54)cos^2+sin^2= 1so 1+12Answer



Discussion

No Comment Found