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- cos 50^(@) . Cos 10^(@)- sin 50^(@). Sin 10^(@)=
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- The value of (cos 10^(@) + sin 10^(@))/(cos 10^(@) -sin 10^(@))is-
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- सारणिक |(cos 80^(@)-cos 10^(@)),(sin 80^(@)sin 10^(@))| का मान हैं-
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- (sin 10^@ - cos 10^@)/ (cos 10^@ - sin 10^@)-ன் மதிப்பு
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