Sin 68 + sin52 / cos 68 + cos 52 = √3
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⇒(sin 68+sin 52)/(cos 68+cos 52)
=2(sin(68+52)/2)(cos(68-52)/2)/2(cos(68+52)/2)(cos(68-52)/2)
=(sin(68+52)/2)/(cos(68+52)/2)
=sin 60/cos 60
=tan 60
=√3
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