Math, asked by javitritiwari3, 10 months ago

sin 25º cos 65° + cos 25° sin 65°​

Answers

Answered by Atharva1317s
5

Step-by-step explanation:

Do you know about 90-theta theorem

If yes you will understand my answer

Attachments:
Answered by bktbunu
7

Step-by-step explanation:

sin 25º cos (90° - 25º) + cos 25° sin (90° - 25º)

= sin 25º sin 25º + cos 25° cos 25°

= sin^2 25º + cos^2 25°

= 1

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