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If x1,X2,X3,x4 are the roots of the equationx^4- x^3 sin 2beta+ x^2 cos 2beta- x cos beta-sin beta=0 then tan inverse x1+tan inverse x2+ tan inverse x3+ tan inverse x4=?

If x1,X2,X3,x4 are the roots of the equationx^4- x^3 sin 2beta+ x^2 cos 2beta- x cos beta-sin beta=0 then tan inverse x1+tan inverse x2+ tan inverse x3+ tan inverse x4=?

Grade:12th Pass

1 Answers

Arun
25763 Points
3 years ago
Dear student
Use 
tan^-1(a) + tan^-1(b) + tan^-1(c) + tan^-1 (d) 
In this formula all the value are asked which we can deduct from the equation.
Linke Like of roots and products of roots.
If you still found any difficulty please feel free to ask.
Regards
Arun (askIITians forum expert)

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