=4.(sin60co20-cos60sin20)/root3.2sin20cos20 [multiply and divide by 4]
=4sin40/root3.sin40= 4/root3
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Sunil Raikwar
askIITians Faculty
Jatin
Last Activity: 7 Years ago
=1/sin20 -1/root3.cos20=root3cos20-sin20/root3.sin20.cos20=4.(sin60co20-cos60sin20)/root3.2sin20cos20 [multiply and divide by 4]=4sin40/root3.sin40= 4/root3