Prove 1 /2-tan2a+1/2+tan2a=1
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1/2+1/2 + (-tan2a + tan2a ) will be eliminated
=1
Answered by
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1\2-tan2a +1\2+tan2a = -tan2a + tan2a (cancel out )
=1\2+1\2
=2\2=1
=RHS
=1\2+1\2
=2\2=1
=RHS
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