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[" 17.If "a sin^(3)x+b cos^(3)x=sin x co...

[" 17.If "a sin^(3)x+b cos^(3)x=sin x cos x],[" and "a sin x=b cos x" then "a^(2)+b^(2)=],[[" 1) "0," 2) "1," 3) "2," 4) "3]]

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