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The equaltion a `sin x+b cos x=c,` where `|c|gtsqrt(a^(2)+b^(2))` hasA. a unique solutionB. Infinite no, of solutionC. no solutionD. none of these

Answer» Correct Answer - C
We know that `|a sinx+bcos x|lesqrt(a^(2)+b^(2))"for all" x inR`
`implies|c|le sqrt(a^(2)+b^(2))`
But, `|c|gtsqrt(a^(2)+b^(2))" "["Given"]`
Hence, `a sin x+bcosx=c` does not hold for any `x in R.`


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