The angle A is obtuse angle of triangle ABC ,if sec (B+C) = Cosec (B-C) = 2 then diagnose the angle of this triangle. (ans this question if you need 20 point ) i will mark you as brainlist ....if you need more points by ans this type of easy questions then follow me...Thank you.
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answer शब्दकोश आचछी आमत्रण
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If ΔABC is an obtuse angled triangle with ∠B as the obtuse angle, then the measure of ∠B>90
o
and measure of ∠A and measure of ∠C is <90
o
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This can be verified by angle sum property
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