Math, asked by teerthtejani6, 1 year ago

Is the value of cos Square 67° minus sin Square 23°

Answers

Answered by Anonymous

0

Answer:

cos^2(67)-sin^(23)

=(cos67-sin23)(cos67+sin23)

=(cos67-sin(90-67)(cos67+sin67)

=(cos67-cos67)(cos67+sin67)

=0*(cos67+sin67)

=0

Step-by-step explanation:

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