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3 years ago

8

Trig help ...............

2 answers:

Flauer [41]3 years ago

4 0

Letter D

A = 135°
B = 30°

cosAcosB - sinAsinB = cos(A+B)

cos(135°+30°)
cos(165°)

masya89 [10]3 years ago

4 0

Answer: D

Step-by-step explanation:

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