Math, asked by hr3, 10 months ago

what is the value of cos square 47 - sin sqare
43

Answers

Answered by rscaber

0

0 is the answer of ur question

Answered by perpetuallyperplexed

0

Answer:

Answer is zero.

Step-by-step explanation:

$Q: cos^{2} 47 - sin^{2} 43 \\\\ cos^{2} 47 - cos^{2} (90 - 43) // [ sin^{2} \alpha = cos ^{2} (90 - \alpha) ]\\\\cos^{2} 47 - cos^{2} 47 = 0$

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