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Please answer this :- Should I answer this by taking only one triangle ABC or should I do by like the example 2 in pg-178:- Question: if angle A and Angle B are acute angles such that cos A is equal to cos B then show that angle A is equal to Angle B. [ Chapter 8- Trigonometry, ex-8.1 q-6.]?
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Please answer this :- Should I answer this by taking only one triangle...
S... Take only one triangle.Cos A = AC/AB - - - - - (1).Cos B = BC/AB - - - - - (2).By both the equations.AC = BCAngle A = Angle B (angle opposite to equal sides r equal).
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Please answer this :- Should I answer this by taking only one triangle...
You can't consider it one triangle. The example of a similar question is done by considering two triangle. I still remember I asked this from my sir and he told me you should know the both ways of doing. If it comes in exam then apply one only with respect to marks.
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Please answer this :- Should I answer this by taking only one triangle ABC or should I do by like the example 2 in pg-178:- Question: if angle A and Angle B are acute angles such that cos A is equal to cos B then show that angle A is equal to Angle B. [ Chapter 8- Trigonometry, ex-8.1 q-6.]?
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