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In `triangle ABC`, prove that `a^2sin(B-C)=(b^2-c^2)sinA`. (Doubtnut) View |
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In △ABC prove that sin(B−C/2)=(b−c/a)cosA/2 (MathZcafe) View |
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In any ∆ABC, Prove that (a^2sin(B-C)) /sinA+(b^2sin(C-A)) /sinB+(c^2sin(A-B)) /sinC=0 (lCS COACHING CENTRE LAHAN) View |
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In `triangleABC, (cos((B-C)/(2)))/(sin(A/2))=` (Doubtnut) View |
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In a triangle `ABC`, prove that : `a sin (A/2 + B)=(b+c) sin (A/2)`. (Doubtnut) View |
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In any triangle ABC, prove that :.a sinA/2 sin (B-C/2) + b sinB/2 sin(C-A/2) + c sinC/2 sin(A-B/2) = (padhai.Online) View |
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In any triangle ABC, prove the following:(a^2sin(B-C)/sinA)+(b^2sin(C-A)/sinB)+(c^2sin(A-B)/sinC)=0 (GLOBAL MATHEMATICS) View |
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In triangle ABC, if ∠C = 90°, then prove that sin(A - B) = (a² - b²)/(a² + b²) (Pace Edu.) View |
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If A, B and C are interior angles of a triangle. Show that sin(B+C)/2 = cos A/2 (Better than School and College) View |
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In any ∆ABC,Prove that (aSin(B-C))/(b^(2)-c^(2))=(bSin(C-A))/(c^(2)-a^(2))=(cSin(A-B))/(a^(2)-b^(2)) (lCS COACHING CENTRE LAHAN) View |