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Composition of Trigonometric Functions and Inverse Trigonometric Functions

In a triangle...

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In a triangle ABC ,a sin (B - C )+ b sin( C - A)+ c Sin( A- B)=

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A B C, \frac{sin A + sin B + sin C}{sin A + sin B - sin C}

△ A B C, a sin (B - C) + b sin (C - A) + c sin (A - B) =

△ A B C

, prove that a sin (B - C) + b sin (C - A) + c sin (A - B) = 0

Q. In triangle ABC, prove the following:

\frac{a^{2} \sin (B - C)}{\sin A} + \frac{b^{2} \sin (C - A)}{\sin B} + \frac{c^{2} \sin (A - B)}{\sin C} = 0

Q. In triangle ABC, prove the following:

a (\sin B - \sin C) + (\sin C - \sin A) + c (\sin A - \sin B) = 0

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Composition of Trigonometric Functions and Inverse Trigonometric Functions

Standard XII Mathematics

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