sin^43.cos^47+cos^43.sin^47=1
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Step-by-step explanation:
sin43cos47+cos43sin47 =1
L.H.S. = R.H.S.
L.H.S.
sin43cos47 + sin47cos43
sin43 cos (90-43) +sin(90-43) cos43
sin43sin43+cos43cos43
sin²43+cos²43
1
that is R.H.S.
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