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dimaraw [331]
3 years ago
10

Sin a ______ = 1/2 [ sin ( a + b ) + sin ( a - b) ]

Mathematics
1 answer:
Neko [114]3 years ago
6 0

Answer:

Cos b

Step-by-step explanation:

1/2[sin(a+b)+sin(a-b)]

1/2[sin a cos b +cos a sin b + sin A cos B - cos A sin B]

1/2[2sin a cos b]

sin a cos b

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Each year on the same day, Susan deposits $175 into a saving account that earns simple interest at a rate of 3.5%. She makes no
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Is this a function?<br> {(-1,3); (-2,-3); (2,0); (0,2)}
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2 years ago
No dia da festança, bianca comprou dos pasteis por $5,20, duas maçãs do amor por $ 3,40 e dois refrigerantes por $7,60. Quanto b
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Responder:

$ 16,2

Explicação passo a passo:

No dia da festa, Bianca comprou os pastéis por US $ 5,20, duas maçãs do amor por US $ 3,40 e dois refrigerantes por US $ 7,60. Quanto bianca você gastou?

O valor gasto por Bianca é a soma de todos os itens que ela comprou:

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A soma da soma dá o valor gasto de Bianca:

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