Math, asked by rohit778180, 1 year ago

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Answered by khushpatel735

2

sin85°•cos5°+sin5°•cos85°

=sin85°•cos(90-5°)+sin(90-5°)•cos85°

=sin85°•sin85°+cos85°•cos85°

=sin♂2[85°]+cos♂2[85°]

=1

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