Recommended Questions
- (cos^4theta-sin^4theta)/(cos^2theta-sin^2theta)=? (a)1 (b)2 (c)(costhe...
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- if sintheta,tantheta,costheta are in G.P. then 4sin^2theta-3sin^4theta...
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- if sintheta-costheta=0, then the value of (sin^4theta+cos^4theta)
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- If sintheta+sin^2theta=1 , prove that cos^2theta+cos^4theta=1
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- If sintheta+sin^2theta=1 , then cos^2theta+cos^4theta= (a)-1 (b) 1 ...
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- sin(5theta)/sintheta is equal to a.16cos^4theta-12cos^2theta+1, b.16co...
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- IF sintheta+sin^2theta=1 prove that cos^2theta+cos^4theta=1 .
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