Cos 15 + sin 15 upon cos 15 - sin15 equal to root 3
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Cos 15 + sin 15 /cos 15 - sin15 = √3
0.9659+0.25882/0.9659-0.25882=√3
1.2247/0.7071=√3
1.73200=√3
√3=√3
proved
0.9659+0.25882/0.9659-0.25882=√3
1.2247/0.7071=√3
1.73200=√3
√3=√3
proved
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