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If-in-a-triangle-a-cos-2-C-2-c-cos-2-A-2-3b-2-then-the-sides-of-the-triangle-are-in-




Question Number 113842 by deepraj123 last updated on 15/Sep/20
If  in a triangle      a cos^2 ((C/2))+c cos^2 ((A/2))=((3b)/2),  then the sides of the triangle are in
$$\mathrm{If}\:\:\mathrm{in}\:\mathrm{a}\:\mathrm{triangle}\: \\ $$$$\:\:\:{a}\:\mathrm{cos}^{\mathrm{2}} \left(\frac{{C}}{\mathrm{2}}\right)+{c}\:\mathrm{cos}^{\mathrm{2}} \left(\frac{{A}}{\mathrm{2}}\right)=\frac{\mathrm{3}{b}}{\mathrm{2}}, \\ $$$$\mathrm{then}\:\mathrm{the}\:\mathrm{sides}\:\mathrm{of}\:\mathrm{the}\:\mathrm{triangle}\:\mathrm{are}\:\mathrm{in} \\ $$

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