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In `DeltaABC` prove that `a^2+b^2+c^2=2(bccosA+cacosB+abcosC)`
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In `DeltaABC` prove that `a^2+b^2+c^2=2(bccosA+cacosB+abcosC)`
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In any `DeltaABC`, prove that `b^2 sin 2C + c^2 sin 2B = 2bc sin A = 4Delta`
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Prove that:- 2(bc cosA + ca cosB + ab cosC) = (a² + b² + c²)
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In any `DeltaABC`, prove that `(c^(2)-a^(2)+b^(2))tanA=(a^(2)-b^(2)+c^(2))tanB=(b^(2)-c^(2)+a^
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In any ` Delta A B C ,` prove that: `2(bc cosA+cacosB+a bcosC)=a^2+b^2+c^2`
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In any `DeltaABC`, prove that `4(bc cos^(2)\'\'A/2+ca cos^(2)\'\'B/2+ab cos^(2)\...
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2(bccosA+cacosB+abcosC)@Mathby1069
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In any `DeltaABC`, prove that `ac cosB-bc cosA=(a^(2)-b^(2))`
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In any `DeltaABC`, prove that : `1-tan (A/2) tan (B/2) = (2c)/(a+b+c)`
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Prove that:- 4(bc cos²A/2 + ca cos²B/2 + ab cos²C/2 ) = (a + b + c)²
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In any A B C, prove that a^2sin (B-C)=(b^2-c^2) sin A
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In any `DeltaABC`, prove that : `2(a sin^2 (C/2) + c sin^2 (A/2)) = a+c-b`
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In triangle `ABC` `(a^2-b^2-c^2)tanA+(a^2-b^2+c^2)tanB=`
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In any ` A B C` , prove that: `2{asin^2C/2+csin^2A/2}=a+c-b`
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In ΔABC,(b-c)cot A/2+(c-a)cot B/2+(a-b)cot C/2 is equal to
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In a `Delta ABC` if `cosA/(bcosC+ccosB)+cosB/(c cosA+acosC)+cosC/(acosB+bcosA)=(a^2+b^2+c^2)/(K...
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In a ABC, prove that 4(b c ·cos ^2A/2+c a ·cos ^2B/2+a b ·cos ^2C/2)=(a+b+c)^2
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In DeltaABC, bc=2b^(2)cos A+2c^(2)cos A-4bc cos^(2)A, then Delta ABC is | 12 | SOLUTIONS AND PR...
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If the area of a `DeltaABC` be `lambda`, then `a^(2)sin2B+b^(2)sin2A` is equal to
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In a `DeltaABC`, prove that `(b-c)cot\'\'A/2+(c-a)cot\'\'B/2+(a-b)cot\'\&ap...
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'In a triangle `A B C ,\\ (a^2-b^2-c^2)tanA+(a^2-b^2+c^2)tanB`is equal to`(a^2+b^2-c^2)tanC`(b)...
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In any ` DeltaABC` , prove that: `(sinB)/(sinC)=(c-acosB)/(b-acosC)`
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IIT JEE TRIGONOMETRIC FUNCTIONS In ` A B C ,` prove that `(a-b^2cos^2C/2+(a+b)^2sin^2C/2=c^2dot`
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`b(cosA-acosC)=c^2-a^2`
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