what is the value of cos square 31 degree - sin square 59 degree
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Answer:
0
Step-by-step explanation:
cos^2 31°- sin^2 59°
cos^2 31°- sin^2 59°
= cos^2 ( 90 - 59 )°- sin^2 59°
= sin^2 59°-sin^2 59°
= 0
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