Grade 1010 grade maths
if sin4 theta + sin² theta = 1 then prove tan4 theta - tan² theta = 1
2 Answers
fdfds
if sin4theta+sin2theta is 1 then from the eq we get sin4theta is cos2theta as sin square theta +cos square theta is 1.now 
sachin
same as above but x = 1+5..........................................................................................................
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