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In a cyclic quadrilateral ABCD, prove th...

In a cyclic quadrilateral ABCD, prove that `tan ^(2)""(B)/(2)=((s-a)(s-b))/((s-c)(s-d)),a,b,c, and d` being the lengths of sides ABC, CD and DA respectively and s is semi-perimeter of quadrilateral.

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`tan ^(2) ""B/2 =((s- a)(s-b))/((s-d)(s-c))`
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ARIHANT MATHS-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise (Questions Asked In Previous 13 Years Exam)
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  10. Let A B Ca n dA B C ' be two non-congruent triangles with sides A B=4,...

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  13. Consider the circle x^2 + y^2 = 9 and the parabola y^2 = 8x. They inte...

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  14. Consider the circle x^2 + y^2 = 9 and the parabola y^2 = 8x. They inte...

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