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If `3sinx+4cosa x=7`has at least one solution, then find the possible values of `adot` |
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Answer» We have `3 sin x+4 cos ax=7` which is possible only when `sin x=1` and `cos ax =1` or `x=(4n+1) pi/2` and `ax=2mpi, m, n in Z` or `(4n+1) pi/2=(2m pi)/a` or `a=(4m)/(4n+1), m, n in Z` |
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