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cos^(2)73^(@)+cos^(2)47^(@)-sin^(2)43^(@...

`cos^(2)73^(@)+cos^(2)47^(@)-sin^(2)43^(@)+sin^(2)107^(@)` is equal to

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RESONANCE DPP ENGLISH-JEE MAINS-All Questions
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  3. cos^(2)73^(@)+cos^(2)47^(@)-sin^(2)43^(@)+sin^(2)107^(@) is equal to

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