For any quadrilateral ABCD which of the following is INCORRECT `(a)sin(A+B)+sin(C+D)=0` `(b)c...
447 views · Published 12 October 2018 · 4:00 · Indexed 26 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW For any quadrilateral ABCD which of the following is INCORRECT `(a)sin(A+B)+sin(C+D)=0` `(b)cos(A+B)-cos(C+D)=0` `(c)tan((A-B-C-D)/2)=cotA` `(d)tan((A+B+C-D)/2)=-tanD`
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