Recommended Questions
- cos4x-cos4y=8(cosx-cosy)(cosx+cosy)(cosx-siny)(cosx+siny)
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- If sinx+siny=sqrt(3)(cosy-cosx), then (sin3x+sin3y)=?
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- (cosx-cosy)^(2)+(sinx-siny)^(2)=?
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- (sinx-siny)/(cosx+cosy)=tan(x-y)/(2)
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- e^(x-y)(sinx+cosx)dx+(cosy-siny)dy=0
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- If cosx+cosy+cosz=sinx+siny+sinz=0" then "cos(x-y)=
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- If sinx+cosy=a and cosx+siny = b, then tan""(x-y)/(2) is equal to :
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- If sinx+siny=p,cosx+cosy=q then sec(x+y)=
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- প্রমান করো যে, abs[[1,cosx-sinx,cosx+sinx],[1,cosy-siny,cosy+siny],[1,...
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