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`sin4A=4sinA*cos^3A-4cosA*sin^3A`
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`sin4A=4sinA*cos^3A-4cosA*sin^3A`
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4sinA×cos^3A-4cosA×sin^3A=sin4A
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`sin4A=4sinAcos^3A-4cosAsin^3A`
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Prove that : sin 4 A=4 sin A cos ^3 A-4 cos A sin ^3 A .
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Prove that 4 Sin³A Cos 3A +4 Cos³A Sin 3A= 3Sin4A
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Prove that: 4sin A . cos³A - 4cosA.sin³A = sin 4A
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Prove 4cos³A.Sin3A +4sin³A.Cos3A = 3Sin4A
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Class 11 trigo, very Important On multiple angles sin(4A) = 4 sinA cos^3A - 4 cosA sin^3A #avte #NDA
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` Sin 4A = 4 cos^3 A sin A - 4 sin^3 A cos A`
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SIN3A = 3 SINA - 4 SIN^3 A | PROOF OF SIN 3A | FORMULA OF SIN 3A PROOF | TRIGONOMETRY
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Trigonometric Ratio of Multiples of an Angle: sin(3A), cos(3A) & tan(3A) | Trigonometry
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Buktikan sin 3A= 3sinA - 4sin³A
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Prove that: `(cos4A+cos3A+cos2A)/(sin4A+sin3A+sin2A)=cot3A`
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Prove that cos3Acos(3A)+sin3A(sin3A)=cos32A
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Sin2A,Sin4A,Sin6A,sin8A
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Buktikan (sin4A +sin 2A)/(cos 4A + cos 2A)=tan 3A
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🔴proof sin4A = 4sinAcosA-8cosAsin^3A |Trigonometry| #maths#trigonometry
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Buktikan sin⁴A = ⅜- ½cos 2A + ⅛ cos 4A
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Prove that: `(cos2A\ cos3A-cos2Acos7A+cos10 A cos A)/(sin4A\ sin3A-sin2A sin5A+sin4Asin7A )=co
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`sin3A+sin2A-sinA = 4sinA*cos(A/2)*cos((3A)/(2))`
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Prove that: `(sin3A cos4A-sin Acos2A)/(sin4A sin A+cos6A cos A)=tan2A`
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11th Std Maths Example 3.24 Prove that sin4A = 4 sinAcos³A- 4 cosA sin³A
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Q8-trigonometry class 10/11 | proof Sin(4A)= ? #maths #class11
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Prove that: cos³A.cos 3A + sin³A.sin 3A = cos³2A
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