Recommended Questions
- Prove that: sin(pi/10) sin((13pi)/10)=-1/4
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- Prove that: sinpi/(10)+sin(13pi)/(10)=-1/2
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- Prove that 4sin(pi/10) sin((13pi)/10)=-1
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- Find the value of (a) sin(pi)/(10).sin(13pi)/(10) (b) cos^(2)48^(@)-si...
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- Prove that: sin(9pi)/(10) + sin(13pi)/(10)=-1/2
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- sinpi/10+sin(13pi)/(10)=?
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- सिध्द कीजिये कि : sin.(pi)/(10) + sin.(13pi)/(10)= (-1)/(2)
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