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- 1 7kŒ) ( (1) (7) +cos2A=1 31 (2) sin A sinB 0.23, …seiun-hs/chp1/pdf/suu1_2.pdf1 7kŒ) ( (1) (7)...
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1 7kŒ) ( (1) (7) +cos2A=1 31 (2) sin A sinB 0.23, …seiun-hs/chp1/pdf/suu1_2.pdf1 7kŒ) ( (1) (7) +cos2A=1 31 (2) sin A sinB 0.23, cosi30= 0.97, tan 130 = 10 130 0.23 (2) sin 130
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