Math, asked by Fighters7025, 1 year ago

Sin 35° sin 55° - cos 35° cos 55° evaluate this

Answers

Answered by jyothisrinivasbts

1

Answer:

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Attachments:

Answered by vbabusp

0

Answer:

-1

Step-by-step explanation:

sin 35 sin55 - cos35 cos55

=-(cos35 cos55-sin 35 sin55 )

=- cos(35+55)

=- cos 90

= -1

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