Math, asked by ms3886470, 1 day ago

Cos squared 27 degree minus sin square 63 degree

Answers

Answered by kandk384

0

Answer:

0

Step-by-step explanation:

Using the formula cos x = sin (90° - x), we get

cos² 27° - sin² 63°

= sin² (90° - 27°) - sin² 63°

= sin² 63° - sin² 63°

= 0

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