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Grade 11Trigonometry

if tan alpha=a,where a is rational number which is not a perfect square,then which of the folllowing is rational number
a.sin2 alpha
b.tan2 alpha
c.cos2 alpha
d.cot2 alpha

Profile image of SanchiSSonawane
7 Years agoGrade 11
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1 Answer

Profile image of Saurabh Koranglekar
ApprovedApproved Tutor Answer7 Years ago
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