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HEY MATE,
YOUR ANSWER = 0.
= ( COS^2 67 - SIN^2 23)
= ( COS^2 67 - SIN^2(90-23) )
-{ COS^2Φ = SIN^2(90-Φ) }
= ( COS^2 67 - COS^2 67 )
= 0
I HOPE THIS WILL HELP YOU...
PLS MARK AS BRAINLIEST.
YOUR ANSWER = 0.
= ( COS^2 67 - SIN^2 23)
= ( COS^2 67 - SIN^2(90-23) )
-{ COS^2Φ = SIN^2(90-Φ) }
= ( COS^2 67 - COS^2 67 )
= 0
I HOPE THIS WILL HELP YOU...
PLS MARK AS BRAINLIEST.
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