Math, asked by sureshjeengar82, 3 months ago

5.Prove (sin35+cos55) (sin55-cos35)=0

Answers

Answered by rimimandal697

1

Answer:

LHS (sin35+cos55)(sin55-cos35)

= sin35° sin55° − cos35° cos55°

= sin(90° – 55°) sin(90° – 35°) -cos35°cos55°

= cos55° cos35° – cos35° cos55°

= 0 RHS (proved)

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