Given A=60^(@) and B=30^(@), prove that ...

Given `A=60^(@) and B=30^(@)`, prove that :
`sin(A+B)=sinAcosB+cosAsinB`

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ICSE-TRIGONOMETRICAL RATIOS OF STANDARD ANGLES-EXERCISE 23(B)

Given A=60^(@) and B=30^(@), prove that : sin(A+B)=sinAcosB+cosAsinB
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Given A=60^(@) and B=30^(@), prove that : cos(A+B)=cosAcosB-sinAsinB
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Given A=60^(@) and B=30^(@), prove that : tan(A-B)=(tanA-tanB)/(1+ta...
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If A=30^(@), then prove that : sin2A=2sinAcosA=(2tanA)/(1+tan^(2)A)
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If A=30^(@), then prove that : cos2A=cos^(2)A-sin^(2)A " "=(...
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If A=B=45^(@), show that : cos(A+B)=cosAcosB-sinAsinB
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If A=30^(@), show that : (1+sin2A+cos2A)/(sinA+cosA)=2cosA.
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If A=30^(@), show that : 4cosAcos(60^(@)-A)*cos(60^(@)+A)=cos3A
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If A=30^(@), show that : (cos^(3)A-cos3A)/(cosA)+(sin^(3)A+sin3A)/(s...
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Given A=60^(@) and B=30^(@), prove that : cos(A-B)=cosAcosB+sinAsinB
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