ها Prove that 5°)=- sin? (a – 45°)+sin? (a+15°) - sin? (a -15°

1.	ها Prove that 5°)=- sin? (a – 45°)+sin? (a+15°) - sin? (a -15°) i)
Answer» ANSWER: ROVE that 5°)=- SIN? (a – 45°)+sin? (a+15°) - sin? (a -15°)

ها Prove that 5°)=- sin? (a – 45°)+sin? (a+15°) - sin? (a -15°) i)

Answer»

ANSWER:

ROVE that 5°)=- SIN? (a – 45°)+sin? (a+15°) - sin? (a -15°)

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ها Prove that 5°)=- sin? (a – 45°)+sin? (a+15°) - sin? (a -15°) i)​

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ها Prove that 5°)=- sin? (a – 45°)+sin? (a+15°) - sin? (a -15°) i)