what is the value of (cos square 67 - sin square 23)
Answers
Answered by
73
Hey... I think this can be ur answer!!
Cos2 67 - sin2 23
=cos2 (90-23) - sin2 23
=sin2 23 - sin2 23
=0
Cos2 67 - sin2 23
=cos2 (90-23) - sin2 23
=sin2 23 - sin2 23
=0
Answered by
47
cos^2(67) - sin^2(23)
=> sin^2[90°-23 ] - sin^2(23)
=> sin^2 23 - sin^2 23
=> 0
Hope it helps u☆☆
=> sin^2[90°-23 ] - sin^2(23)
=> sin^2 23 - sin^2 23
=> 0
Hope it helps u☆☆
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