Recommended Questions
- (cosalpha+cosbeta)^2+(sinalpha-sinbeta)^2=4cos^2(alpha+beta)/2
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- The determinant D=|{:(cos(alpha+beta),-sin(alpha+beta),cos2beta),(sina...
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- (cosalpha-cosbeta)^(2)+(sinalpha-sinbeta)^(2)=4sin^(2)((alpha-beta)/(2...
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- প্রমাণ করো,(cosalpha-cosbeta)^2+(sinalpha-sinbeta)^2=4sin^2""(alpha-be...
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- The determinant : |(cos(alpha+beta),-sin(alpha+beta),cos2beta),(sinalp...
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- cosalpha+cosbeta=cos"" (3pi)/7 এবং sinalpha+sinbeta=sin ""(3pi)/7 হলে,...
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- Prove that (cosalpha+cosbeta)^2+(sinalpha+sinbeta)^2=4cos^2((alpha-bet...
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- Prove that: (cosalpha+cosbeta)^2+(sinalpha+sinbeta)^2=4cos^2((alpha-be...
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- Prove that: (cosalpha-cosbeta)^2+(sinalpha-sinbeta)^2=4sin^2((alpha-be...
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