" 18."cos^(2)alpha-sin^(4)alpha=a" then ...

" 18."cos^(2)alpha-sin^(4)alpha=a" then "(1-a)/(1+a)=

" 18."cos^(2)alpha-sin^(4)alpha=a" then "(1-a)/(1+a)=
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(1)/(sec^(4)alpha)+(1)/(cos ec^(4)alpha)+(2)/(sec^(2)alpha+cos ec^(2)a...
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(1)/(sec^(4)alpha)+(1)/(cos ec^(4)alpha)+(2)/(sec^(2)alpha+cos ec^(2)a...
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If 2(sin alpha)/(1+cos alpha+sin alpha)=y then value of (1-cos alpha+s...
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Show that cos^(4)alpha+2cos^(2)alpha(1-(1)/(sec^(2)alpha))=1-sin^(4)al...
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If sin^(2)alpha+ sin alpha=1, then the value of cos^(4) alpha+ cos^(2)...
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यदि A=[{:(,1-cos^(2)alpha,1-sin^(2)alpha),(,sin alpha,cos alpha):}] तथ...
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If (cos^(4)alpha)/(cos^(2)beta)+(sin^(4)alpha)/(sin^(2)beta)=1, then ...
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Show that cos ^(4) alpha + 2 cos ^(2) alpha (1-(1)/(sec ^(2) alpha ))=...
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