Sin^2(π\8+A/4)-sin^2(π\8-A/4)=1/√2sinA/2

  1. If cotA=3/4find the value of 2sinA-3cosA ÷2sinA - 3cosA.
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    2. Anonymous asked by Anonymous
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  2. Prove that. √seca+2sina/seca-2sina=Sina+cosa/sina-cosa
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    2. Aditya asked by Aditya
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  3. Sin^2(π\8+A/4)-sin^2(π\8-A/4)=1/√2sinA/2
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    2. Manoj gupta asked by Manoj gupta
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  4. FindA if (2sinA\2)squared=2
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    2. Rachel asked by Rachel
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  5. x=2cosa-cos2a,y=2sina-sin2a
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    2. Anonymous asked by Anonymous
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  6. 2sinA+5cosA=4. Prove that cosA=1/2
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    2. Shambu asked by Shambu
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  7. prove that 2sinA + 1 / cosA+sin2A=secA
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    2. cindy asked by cindy
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  8. IfA=340°, prove that2sinA/2 = -(v1+sinA) + (v1-sinA)
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    2. Kewal asked by Kewal
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  9. M=sina+cosaN=seca+coseca M^2/2M^2-N^2=cosa^2/2-2sina^2-coseca^2
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    2. Arshad asked by Arshad
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