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If |(1+sin^2 theta,sin^2 theta,sin^2 the...

If `|(1+sin^2 theta,sin^2 theta,sin^2 theta),(cos^2 theta,1+cos^2 theta,cos^2 theta),(4sin 4 theta,4sin4theta,1+4sin4theta)|=0,` then ...`sin 4theta` equal to ....

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