Question

Sin square 67 + sin square 23

Answer 1

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= sin^{2} (67 )+ sin^{2} (23 )

= sin^{2} (67) + sin^{2} (90 - 67)

= sin^{2} (67) + cos^{2} (67)

= 1
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Answer 2

sin square 67 +sin Square 23
=sin square 67 + sin square (90-67)
=sin square 67 + cos square 67
= 1 because we know that sin square thita + cos square thita = 1
hope it's help you