Which expression completes the identity cos u cos v=

2 answers:

4 0

Cos(u+v) = cosu.cosv - sinu.sinv and cosu.cosv= cos(u+v) + sinu.sinv
or
cos(u - v) = cosu.cosv + sinu.sinv and cosu.cosv= cos(u+v) - sinu.sinv

4 0

A is the correct answer.

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Lelechka [254]

∠1 = ∠2
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Selection B is appropriate.

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2 years ago

luda_lava [24]

Answer:

Perimeter: 26 units

Area: 24 units²

Step-by-step explanation:

12 + 9 + 5 = 26

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A = 24

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Tcecarenko [31]

Just multiply 4*12 and add 6.
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Katarina [22]

Answer:

Step-by-step explanation:

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LenKa [72]

Answer:

Step-by-step explanation:ghjhe

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3 years ago