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AAKASH SERIES-TRANSFORMATIONS AND INDENTITIES-PRACTIVE EXERCISE
- If x+y+z=180^(@) then (sinx+siny+sinz)/("cos"x/2."cos"y/2."cos"z/2)=
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- If alpha=(pi)/21 then (sin 3 alpha+sin 7 alpha)/(sin 24 alpha+sin 14 a...
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- If (sin A-sinC)/(cosC-cosA)=cotB then angles A,B,C are in
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- sinx+siny=3/4 andsinx-siny=2/5 then (tan((x-y)/2))/(tan((x+y)/2))=
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- tan theta tan (theta+60^(@))+tan theta tan (theta-60^(@))+tan (theta+6...
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- cos(x-y)=3cos(x+y) then cotxcoty=
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- (sin(alpha+beta))/(sin(alpha-beta))=(a+b)/(a-b) then (tan alpha)/(tan ...
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- If sin 2 x=n sin 2y then (Tan (x+y))/(Tan(x-y))=
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- If tan beta =cos theta tan alpha then "cot"^(2)(theta)/2=
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- If Tan theta(1)=k cot theta(2) then(cos (theta(1)+theta(2)))/(cos (the...
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- If cos theta = ( cos alpha - cos beta )/(1- cos alpha cos beta ) " the...
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- If cos theta =(a cos phi+b)/(a+bcosphi) then ("tan"(theta)/2)/("tan"(p...
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- In DeltaABC, (sin2A+sin2B+sin 2C)/(sinA+sinB+sinC)=
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- If A+B+C=180^(@) then cos A+cos B-cosC=
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- If A+B+C=0^(@) then sin A +sin B+sin C=
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- If A+B+C=270^(@) then sin 2A+sin2B+sin2C=
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- If A+B+C=0^(@) then sin A +sin B+sin C=
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- cos 22^(@)+cos 78^(@)+cos80^(@)=
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- Statement: If sin A =sin B, cos A=cos B then A=2n pi +B Statement :I...
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- Statement I: cos 52^(@)+cos68^(@)+cos172^(@)=1/2 Statement II: 4sin ...
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