DU U UU wa wuv TMTU =2 (ii) cos570°...
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DU U UU wa wuv TMTU =2 (ii) cos570°.sin510° + sin(-330°).cos390º =ä

11th - 12th Class
Maths
Solution
116
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( theta=cos 70 cdot sin 510+sin (-330) cdot cos 390 ) ( cos (2 times 360-150) cdot sin (2 times 360-210)-sin (360-30) ) ( cos 150 cdot sin 210-cos (360+30) ) ( cos (80+30) cdot sin (100+30)-sin 30 cdot cos 30 ) ( +cos 30^{circ}+sin 30^{circ}-sin 30 cdot cos 30 ) ( cos 30 cdot sin 30=sin 30^{circ}+0 sqrt{30} )
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