Math, asked by singhgreat77, 6 months ago

Cos (A + B) + Cos (A - B)/
Cos (A+B) - Cos(A-B)

Answers

Answered by deevanshpal

1

Answer:

- CotACotB

Step-by-step explanation:

Cos(A+B) + Cos(A-B) = 2CosACosB

Cos(A-B)-Cos(A+B) = - 2SinASinB

so, Cos(A+B)+Cos (A-B) /Cos(A-B)-Cos(A+B)

= 2CosACosB/-2SinASinB = -CotA/CotB

Answered by student2200

0

Answer:

-cotAcotB

Step-by-step explanation:

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