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Factorization Method Form to Remove Indeterminate Form

133.If A+B+C=...

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133.If A+B+C= Pi, cotx = cotA + cotB + cotC. Then prove that sin (x-A) sin (x-B) sin (x-C) = sin(cube)

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A + B + X = π

then prove that

{sin}^{3} A cos (B - C) + {sin}^{3} B cos (C - A) + {sin}^{3} C cos (A - B) = 3 sin A sin B sin C

Q. If in triangle ABC,

∣ ∣ ∣ ∣ \begin{matrix} a & b & c b & c & a c & a & b \end{matrix} ∣ ∣ ∣ ∣ = 0

c o t A + c o t B + c o t C =

A + B + C = π

, then prove that

{sin}^{2} A + {sin}^{2} B + {sin}^{2} C = 4 sin A sin B sin C

A + B + C = π

then prove that sin 2A +sin 2B+sin 2C =4 sin A sin B sin C.

Q. In any triangle ABC

A^{2}

B^{2}

C^{2}

Q P

c o t A

c o t B

c o t C

A . P

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Factorization Method Form to Remove Indeterminate Form

Standard XII Mathematics

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