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If no solution of 3siny+12sin^3x=a lies ...

If no solution of `3siny+12sin^3x=a` lies on the line `y=3x ,` then `a in (-oo,-9)uu(9,oo)` a`a in [-9,9]` `a a in {-9,9}` `non eoft h e s e`

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
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