Math, asked by YashNehe, 7 hours ago

cos54° x cos36° - sin54° x sin36°

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Answers

Answered by SurajKumar0212

1

Answer:

0

Step-by-step explanation:

cos54° x cos36° - sin54° x sin36°

=cos54° x sin54° - sin54° x cos54°

=axb-bxa

=ab-ab=0

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