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Question

If o<α<β<γ<π2, then the equation 1xsinα+1xsinβ+1xsinγ=0 has

A
Imaginary roots
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B
Real and equal roots
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C
Real and unequal roots
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D
Rational roots
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Solution

The correct option is A Imaginary roots
1xsinα+1xsinβ+1xsinγ=00<α<β<γ<π2letα=300,β=450,γ=6001x12=1x22=1x32=0
hence roots are real and unequal

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